Sunday, 27 September 2026

A Boy Called Granny — Part 2

Hollywood's response to the rise of television were the revolutionary widescreen colour film movie technologies of the 1950s: Technicolor, CinemaScope and Deluxe. However, the film reels of my school days need no fancy technology; they spin on neural projectors which beam the moving images on a mental silver screen. Everything is housed inside the theatre of my imagination and visualisation where I am the sole viewer.

In quieter moments and without Bluetooth ear-buds, I can also clearly hear the sounds from my past in true Dolby Stereo.

Special talents attract ‘special forces’

The above are dangerous admissions that could prompt the government to ‘use’ my talents to ‘serve the national interest’. I certainly shall not mind serving as long as the government displays fine taste by hauling me blonde-folded to a pink chamber with mirrors, and where men in black might ‘help’ mould the ‘free will’ using only that fizzy orange creation of the Nazis: Fanta.

A few days ago, our government decided to tax the income of social media influencers who monetise clicks and likes on their channels. Those like myself could be taxed too for narrating past events that might secretly be aimed at 
improving the minds of the public through a reading habit.


Taunts from aunts

Mehmood Sial alias granny’s complete tale was far from told in the previous article titled: A Boy Called Granny - Part 1. We shall conclude it here.

Every class at St. Anthony’s High School of Lahore was a different movie with a new set of disciplinarian teachers who played their parts to tame new batches of prankster students in an historic school building raised at 3 Lawrence Road in 1900. The ever-present authoritarian doom and gloom miraculously helped the boys create their own boom of brotherhood.

In junior classes, a female teacher was also a grooming instructor who could publicly reprimand any boy for wearing shabby wrinkled uniform and having untrimmed or dirty nails.

The most popular taunt was a frontal attack on our mothers, “Does your mummy ever notice how you come to school?”

One preferred biting his nails to conveying the teacher’s insult to a mother fatigued by domestic chores.

Bowing one’s head was a traditional response to all derisive comments made by teachers. The word sorry was used perhaps twice a year. Outward silence meant a student had reached an internal boiling-point that only lowered once he criticised within his group a female teacher’s long claws and possibly the dirt underneath the nail-polish.

Once we became sufficiently senior, pulling up the socks, readjusting the tie-knots and buttoning up the jackets were expected to have become permanent habits in an impermanent world.
To be or not to be full-set gentlemen was a probability question, so we were happy to be half-set gentle boys.

What's the story, morning glory?


The school’s morning assembly was a sober drama whose stage-curtain rose each morning when the entire cast appeared. These were the Irish Brothers of St Patrick (Patrician Brothers) in white robes with green sashes that swung as they walked, the indigenous Anglo-Indian suited and booted teachers, and hundreds of stunning stunt-boys in school uniform.

In the front row of the congregation stood a chorus of chosen ones who sang Pakistan’s national anthem. Since the lyrics were in Persian language, the flock in the rear merely lip-synced to the lyrics which it neither comprehended nor wished to. I was part of that front row cultural troupe but could only sing in unison if the rest did not change the original key (musical pitch) or not suddenly transpose it up a few semitones. My voice was changing.

At the conclusion of that ceremonious collective nationalism, Catholic students offered a Christian prayer with lowered heads, clasped hands and closed eyes to display devotion to the Principal in Heaven. Muslim boys only uttered aameen at the end, which seemed like the Christian amen and which in turn sounded like Amon (Amen) of the ancient Egyptians who worshipped Amun as ‘the hidden one’ (creator god of air and life based in the city of Thebes).

No sooner did the morning assembly end, someone deliberately crashed from the rear into whoever stood behind Mehmood ‘granny’ Sial. After granny took a hit, the ones in front too jolted and then protested. Swiftly, the prankster escaped, leaving others amidst a blame-game.

Each day a different bourgeois comrade took turns ramming into moneyed granny. Granny seldom reacted like an angry old woman because non-stop mischief was as natural to the boys as breathing in and out.

Daddy Sial

Historically, the influential Punjabi Muslim tribe of the Sials primarily occupied the Jhang district of Pakistan's Punjab province. Tracing their origins to ancestral Rajput or Jat lineages, the tribe established a powerful autonomous state during the eighteenth century before the rise of the Sikh Empire (1801-1839).

Granny's father was the prominent Professor Dr. N. A. Sial, a legendary pioneer in Pakistan's medical history. He served as the Head of the Obstetrics & Gynaecology Department at Lady Willingdon Hospital in Lahore and was one of the most influential medical educators of that era. He served as the Principal of King Edward Medical College (KEMC), Lahore from December 1969 to September 1971 and chaired its Academic Council. He turned Lady Willingdon Hospital into a premier, globally recognized center for maternal healthcare and training throughout the 1950s, 60s, and 70s.

The Sials lived on 3 Shannon Road, in a 4-kanal government bungalow facing the Canal Bank Road in idyllic G.O.R-1, off  Mall Road (Lahore). These government officers’ colonies, 1 through 5, housed very important persons since the British Raj days.

Inside granny’s cave

It was a hot summer evening. Granny had warmly invited me to his birthday party, a gesture that slightly increased the ambient temperature.

I asked, "Where are other class-fellows?"

He replied, "What others? You're my closest friend". 

The sprawling well-kept lawn and the interior of the house impressed me but what caused a serious sense of deprivation was granny’s very own room. At home I did not have a room of my own.

His study desk stared at me. At home I sat at the dining table to study.

His bookshelf laughed at me. At home, I stored all my possessions in just one shelf of a wall cupboard.

The books and the comics on his bookshelf made funny faces at me. By contrast, I mostly borrowed reading material from the school library.

There was a working train set on the floor that seemed ready to run me over. If granny were its steam engine, I felt like a guard waving a green flag hanging off an akhri dibba (brake van).

My father was a hardworking lawyer by profession and my mother mindful about domestic expenditure. We certainly were not poor but that evening at granny’s, I suddenly felt needy.


Caught wearing a birthday suit

The next morning I was front page news in the classroom. The intelligence wing of the nosy brotherhood had taken an extraordinarily strict notice of my solo appearance at the birthday party.

During the half-break, I was invited to yet another party: the Tribunal of the Holy Office of the Boyish Inquisition. There I was put on the rack, ordered to accept the honcho as my saviour and disown the ‘devil’ who had suddenly vacated some hellish abode to take up residence in granny’s body.

The honcho asked, “What did you have at the party?”

A rapid recitation of the menu oozed out of my lips as if I were a waiter at a cheap desi restaurant, “Chicken patties, Coke, fruit-chaat, dahi barey, a very nice cake and——”.

I was interrupted by an Anglo, “Enough, buggar man! Were there any girls there?”

“Yes, of course, but those were granny’s sisters.”

Twisted logic jumped up, “Just answer with yes or no. His sisters are girls, aren’t they?”

Morality responded with a high jump, “Yes but to me, all my friends’ sisters are like my own sisters. They’re girls later.”

Then someone intervened, “Let him go. We’ll see next time.”

Love thy (distant) neighbour

When a boy-group leader says, “We’ll see”, that usually settles over one, a very dark foreboding.

Most thought it prudent to wait for a year in order to make themselves eligible for an invitation by granny but a few impatient ones attempted to become immediately likable by him. Granny was perceptive; he did not like them in return. When the latter plan failed, a few who lived close to granny, took to cycling in the evenings through Shannon and Danepur Roads of G.O.R-1 where the two Sial sisters also rode their ladies’ bicycles.

It went on for a while until Dr. Sial noticed several 'loafer boys' peddling half-baked affection. He instructed his ferocious servant to 'get hold of whoever dared to tease the girls’. Nobody ever got caught; the servant was horribly obese and near-sighted.

Those class-fellows were condemned to finding only sisterly love on Danepur Road, so they stopped paying homage but not without first christening it 'Dame-Pur Lane' (a lane full of 'dames'). At school, the boys referred to young girls as 'dames' and older ones as ‘aunties’—the latter could be as young as twenty.

Farewell, my bluff

Watching granny leave the school was bonus fun. He always sat up front next to the chauffeur in a green Opel Kapitän (1959–1963) with a white top. That German behemoth seemed like a Rolls-Royce to us because the general public had decided to enrich the makers of cheaper and smaller Japanese Toyota Corona and Mazda cars.

Granny’s two sisters sat in the rear. Naughty class-fellows pretended to wave at granny but the sisters knew they were the real recipients of affection. They blushed, responded with discrete smiles and hid their faces behind open textbooks in their dainty hands. Granny never discovered the goings-on at the back; he always excitedly waved back at the boys as if receiving a guard of honour.


Being a neutral observer, I never waved because granny thought of me as 'not that kind of a guy'. It was rather hard, appearing almost pious and yet being a part of the stud-hood.

Later in life, excess passion benefitted only two of my class-fellows who starred as heroes in Pakistani Urdu movies; the rest became the audience that faced the silver screen and emulated until age sixty, Casanova, Don Juan or Rasputin.

Post-retirement and having reached high stations in life if not romance, almost overnight the latter types became tabelighi maulvis (proselytising Deobandi mullahs), holding tasbihs (rosaries), wearing shalwars high over fat bellies, displaying bruised ankles and foreheads, and sporting untrimmed facial hairs that dented Gillette's razor sales.

Granny, are you okay?

When old friends meet these days, they merely enquire about the whereabouts of this or that class-fellow. If the poor man is dead, they ask, "Oh no, how and when did he die?".

If the man is alive, then a failure to reconnect indicates that life, wife and children have chipped away something valuable inside.

Some of my best mates simply vanished after leaving school, some passed away quietly in foreign lands—mostly buried, at least one cremated—and only a few now within my small circle.

Many whom I traced after considerable effort, reacted coldly and showed no interest in reviving old friendships that went as far back as sixty years. It was a grave mistake on their part to think they could order friends online as if they were late night pizzas.

So, what became of granny? Granny too, like so many others, was never seen again after leaving school. Wherever he might be, I hope he is well, married with children and now getting his cheeks pinched by grandchildren, just as he did by his class-fellows at school. God forbid if his wife, after discovering his pet-name through my memoirs, should switch from calling him granny instead of darling.

END OF PART 2 (concluded)
💚
©Tahir Gul Hasan, 2026

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To know more about my Urdu teacher, Mr. Nasiri, read:
As The Crow Flies
Stone The Crows

To know more about my science teacher, Mr. Fardy, read:
The Rocket Science Of Mr Fardy - Part 1
The Rocket Science Of Mr Fardy - Part 2

To know more about my class-teacher of four-B, Mrs. Davies, read:
The Things I Did For Mrs Davey

To know more about my English teacher of five-B, Miss Shama Utarid, read:
The Amazing T-Pad
The Rocket Science Of Mr Fardy - Part 1
As The Crow Flies


Disclaimer
The idea behind narrating details about female teachers is not—God forbid—to poke fun at them or display them as unworthy of respect and admiration. Far from it. Most definitely, all of them are deceased as of this writing or may be alive as respectable mothers and grandmothers. To pray for their departed souls or wish them good health is all I can do as their ex-student. Boys tend to always think and speak unlike how girls do. These biological and psychological differences shall always result in each gender being mostly poles apart. You are therefore requested to just enjoy the memoirs instead of raising objections over supposed political incorrectness.

Sunday, 13 September 2026

A Boy Called Granny — Part 1

"Those who cannot remember the past are condemned to repeat it."
—George Santayana (The Life of Reason, 1905)


The above is a celebrated quote but by George, my natural ability to remember the past in great detail almost always saves me from being condemned to repeat it but not before I pay a certain price: that of having schoolmates and class-fellows without an appetite for reading my 'lengthy' chronicles that often disclose details they would rather ‘forget and move on in life’.

Serious education

To an educated person, the formative years of school always remain the most important ones in life. Without ever spending two years in any class, I sailed from one to ten, section-B, within a decade to enter college.

This story starts at St. Anthony’s High School of Lahore in 1970. The class-teacher of seven-B was a stocky Anglo-Indian named Mr. Joseph and whose heavy punishing hand scared the trousers off the students.

His favourite instrument of torture was a 1/4-inch thick wooden foot-ruler that landed as flat on our palms as a bad joke did. 
Mercifully, he never used the ruler’s metal edge to punish us when things got out of hand. The photo here is that of the same ruler (without its metal edge) which I preserved for posterity.


Toppers, paupers and others 

In the school’s very serious jungle, my survival depended upon hunting with lion-like students and running with the hare-brained.

Being amongst the top ten ‘bright students’ was akin to residing amongst the gods on Mount Olympus. To me, those who topped seemed like one-trick ponies that could devour textbooks without burping and never suffering from literary diarrhoea. How these bookworms scored virtually full marks in most examinations was beyond comprehension but I suppose each one worked hard to reach the top instead of being toppled.


An average student loved doing things in this order: strange extracurricular activities, stranger mischief, sports, and lastly studies in spare time. Perhaps that is why instead of securing first position, the highest I could attain was a respectable third.

Those who topped from the bottom in class, received Divine Help in two forms
: the passing marks were only thirty-five out of a hundred and the teachers routinely bestowed the wings of ‘grace marks’ on fallen angels. While the 'lazy fellows' celebrated success, and the principal lauded the teachers thinking they had miraculously kept the failure rate low, these crutches did not help some who still failed most miserably in multiple subjects and ended up repeating the same class.

A memory worth cherishing is participating in an English essay-writing competition and receiving a certificate for third place. From then on, I took to writing like a fish to water. This website and my 
contributions elsewhere are living proofs of that old pudding.

The ones who could not express themselves well in school 
grew up to initially annoy their beloveds and finally the unlovable wives. All they could muster was write forgettable and dreary annual confidential reports of employees working under them in the companies or the government departments.

The ‘marginal cases’ were a very different class within the class. They wore on their faces a special kind of misery. The astute teachers kept a mental record of their failures in tests, chattering abilities and mischief-making. A slap here and a cane there from the teachers, that was the lot of the incurable bones.

“Those who spare the rod hate their children, but those who love them are diligent to discipline them” —The Bible, Proverbs 13:24

The above proverb was religiously practised by the missionary Fathers and the teachers.

Serious sports

‘P.T’ (physical training), football and gymnastics were morning activities while cricket, hockey, table-tennis, swimming, and rifle-shooting took place in the evenings. Everybody participated in one or more sport of his liking. The more capable ones became captains and members of school teams. Those left out became able spectators.

Mischief was plentiful but at times an excess of it got our fathers summoned to face a serious complaint at the office of the Father Principal.

Once inside that room without oxygen, we always found Lady Justice away on maternity leave, an unbending judge on the bench, a defence attorney father who acted like the prosecution, the symbolic balance tipped in the accuser's favour and the sword unsheathed to do what it was designed to do.

Most boys took what came at them like men did: on the chin and without hiding under mommy’s skirt. That character strength helped much later in life.

As for the celibate Irish-Scottish Fathers who ran the school, they stayed aloof from womankind—something that was hotly debated by the boys. The fact remained: those men in white robes with green sashes were spiritually married to the church and therefore sadly childless. However, being far away from their home countries, they developed a penchant for venting out frustration and anger on defenceless boys.

Science-project ‘granny’

That lengthy preface was necessary. Let us dive into the real story.

The tragedy of our English-medium missionary education had some comic relief in the form of a class-fellow named Mehmood Sial, a cheerful studious character who came from a well-off family and possessed cheeks as soft as a baby’s buttocks. Our science-teacher, Mr Fardy, perhaps seeing in Mehmood a glimpse of his own dead grandmother, bestowed upon him a nickname that stuck: granny.

Click on the links below to read about Mr. Fardy, my science teacher in class seven-B:
We were all dangerous and thirteen. Our biological fathers insisted we offer five daily prayers to plant the fear of God in our hearts but being in an all-boys school, our brains received encrypted signals from a star named LESS SIRIUS-B that prompted many to perpetually entertain taboo thoughts about the opposite gender. None had an off switch. The level of testosterone remained off the charts.

Instead of offering five daily prayers, some boys pinched giggly girly granny’s soft cheeks five times: prior to the morning assembly, after the assembly prayer, during class, in the half-break and finally at full-break. By the day’s end, granny’s cheeks took on such a rosy appearance it could fool his mother into thinking the boy was in perfect health.

During class, the pinching only happened when certain conditions were fulfilled by the teacher: he faced the blackboard; scribbled frantically; raised small clouds of white chalk-dust; had his hair and the suit covered with white powder, and, as a distant cousin of Snow White, was yell-bent on teaching the unteachable certain lessons within the forty-five minutes assigned to his ‘period’.

During such gaps, when granny was pinched and fidgeted, the teacher turned around to spot an inattentive boy and hurled a piece of chalk like a champion dart thrower. The reaction of his target always brought smiles on our faces which necessitated either bowing heads or covering mouths with hands, to avoid turning comedy into a greater tragedy. To be caught smiling in the middle of disciplinary proceedings was an open invitation to punishment which produced silent and expressionless laughter but with faces turn
ed red.


All that was live transmission, much before children had video cassette recorders and multiple TV channels of entertainment. E
ssentially, the missionary school was a centre for higher spanking with some education thrown in. The teachers' tests and our high testosterone were two horses that galloped neck to neck.

Granny, why do you have such deep pockets?

Daily granny came ‘loaded’ with a ten Rupee note in his pocket which created silent greed and an inferiority complex in the brotherhood. Most only brought coins or crumpled one Rupee notes, while the poorest came to school empty-handed and went home empty-bellied.

Granny’s ten Rupees wielded the power to feed ten chilled Coca Cola bottles of small size and twenty samosas at the school canteen to nine wretches. That never happened but whenever I put my arm around Granny's shoulder to declare, “You’re my best friend!” he got me a fair ration of one Coke and two samosas at the school canteen.

Granny never objected if I called him granny but felt offended when others did. On good days our friendship saved me one Rupee of daily allowance with which I bought spinning tops from Taj Deen, the nearby top-maker who got rich because of the patronage of the Anthonians.

Of beauties and beasts

Two years earlier in class five-B, we invoked
—each according to his faith—Rama, Rahim, Jesus, and Ahura Mazda to answer our prayer for a young and pretty teacher. One of these deities then beamed down Miss Shama Utarid. To know her was to adore her.

Click on the links below to read about Miss Shama Utarid, English teacher in class five-B:
After class five-B our strange prayers to assorted deities 
remained unanswered and deprivation became our collective destiny. Until X-MB (Matric), we never had in front of the blackboards any fair Aphrodite, Freyja, Lakshmi, or Diana. Throughout the wonder years, all we got were mostly bearded male teachers beyond the age of man-o-pause and whose personalities made several boys harsh and bearded later in life.

Romantic crushes develop during adolescence without any regard for age, which is a universal truth. A name worth-mentioning here is that of Madame F. The fixation of many on her was living proof of a substantial fan-base. 
She was the class-teacher of eight-A, in her mid-forties—three and a half times our average age—and an absolute top of the pops. Only God knew what fountain of youth she drank from; the passage of years had no effect on her.


Summer of 42, that movie about the end of innocence was released in April 1971 but an imaginary film was already projecting on the screens of the brains of senior students. In it, Madame F., as an attractive heroine, 
was paired with born-to-be-riled Brother Golden. That villainous hero would, a year later, become the school’s principal and our chief tormentor.

The art scene

During that Golden period of Anthonian history, our dark and foul-smelling latrines turned into an art gallery that featured artistic expression mixed with freestyle graffiti. On the walls of the school lavatories one saw unfiltered one-liners, brief summaries and graphic details about all alleged 'friendships' between the staff. The boys dragged in the dirt whomsoever they fancied or detested. It was their way of dispensing poetic justice and paying back the administration.

Throughout history, Art never oozed out of secure, comfortable or fragrant palaces. Our crude Anthonian folk Art remained exhibited on the toilet walls until it was painted over during the summer vacations. Once the boys returned in September to sit in new classes, the walls regained their former spicy glory to educate a new generation of students about the supposed carnal scandals.

END OF PART 1

This article shall be concluded in part 2.
Please come back for more.

💚

©Tahir Gul Hasan, 2026

Click on the links below to read about Mr. Nasiri, my Urdu teacher from the same class:
Click on the link below to read about Mrs. Davies, my class teacher in class four-B:
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Disclaimer
The idea behind narrating details about female teachers is not—God forbid—to poke fun at them or display them as unworthy of respect and admiration. Far from it. Most definitely, all of them are deceased as of this writing or may be alive as respectable mothers and grandmothers. To pray for their departed souls or wish them good health is all I can do as their ex-student. Boys tend to always think and speak unlike how girls do. These biological and psychological differences shall always result in each gender being mostly poles apart. You are therefore requested to just enjoy the memoirs instead of raising objections over supposed political incorrectness.

Sunday, 23 August 2026

How To Repair A Rear Derailleur Hanger

When something terrible suddenly happens to a possession one dearly loves, it is quite natural to utter WHAT THE… and then top it off with a globally recognised expletive associated with horizontal entertainment.

To find out how my beloved celeste Bianchi Via Nirone 7 bike (Shimano 105 R7000), and the Shimano SH-RC7 cycling shoes got damaged during a recent accident, please read my previous two articles:

QUIZ: Can you spot any differences in the hangers shown above? Find your answer at the END of this article.

Now let us get on with repairing a rear derailleur hanger that looks like the hunchback of Notre Dame.

Drop(out)dead gorgeous

A hanger is a metal bracket that connects a bike’s frame to its rear derailleur. During the post-accident inspection, my rear derailleur emerged unscathed but the hanger got damaged. I sat cross-legged under a Banyan-tree, researched the subject, read articles and watched YouTube videos until a solution unveiled itself.

I took off the rear derailleur for the first time since buying the bike. With a wire I tied it to the chain so that the two would not hang lose and interfere with tinkering.

The derailleur and hanger specifications for Shimano WH-RS100 aluminium wheels are as follows:

  1. Mounting Bolt Thread: M10 × 1.0 (10 mm diameter with a 1.0 mm fine thread pitch)
  2. Required Tool: 5 mm hex (Allen) key
  3. Recommended Tightening Torque: 8 to 10 Nm (using a torque wrench)

Hang ‘em high

I used three tools to get the two hex bolts out:

  1. Hex (Allen) 5 mm bit
  2. MXITA digital torque adapter
  3. Stanley half-inch drive ratchet (set 2-85-586)

Unscrewing them revealed a weakness: both were only torqued to 4 Nm (or only half of Shimano-recommended 8-10 Nm).

Bolts and nuts do tend to become lose due to road vibrations. Besides, the manufacturers are not very particular about correctly torqueing the hardware of lower and middle tier bikes. Whether you buy a new or a used bike, do correctly torque all your bolts and nuts before riding.

I recall how after a few rides on my new bike, I found a calliper brake-pad that was ready to fall like the Roman Empire. From that day on, I worked to create a master-list of all the hex bolts, their Metric sizes and torque (Nm) settings. The data was painstakingly collected from official Shimano catalogues.

It does not hurt to be a nutcase. I now maintain a precise inspection schedule based on the mileage and the number of riding hours.

Alignment, but why?

Not until I got into serious maintenance did I realise that bicycles, much like cars, required alignments of important parts. Looking at my deformed hanger I realised that a derailleur hanger alignment tool was needed to straighten it. Disappointingly, neither any repair shop owned one nor was it available locally for purchase.

To read about professional alignment tools, click HERE and then HERE, but rejoice, cheaper options are also available from other manufacturers. Currently I am working on making the tool myself—you guessed it—to save money and learn new things.

Standing at the rear and slightly to the right side of the rear wheel, I eyeballed the hanger. Vertically, its front edge was twisted inward and the bottom end bent inward towards the wheel.

Without removing the hanger from the frame, and using very small and careful corrections with an adjustable 10-inch wrench, I unbent and untwisted the hanger back into position. The chain could now be easily slipped over the cassette and the chain-ring.

Off to the mechanic

Finding and then importing a hanger from a foreign on-line shopping platform seemed like an uphill task. I called several cycling stores but none had the exact same hanger for sale.

I headed to a friendly bike mechanic. His verdict was, “Since we don’t have a new hanger of this shape, we’ll repair the old one”.

When he tried to remove the wheel from the vertical drop-out, it was stuck. Earlier, I had failed to notice that due to the accident’s impact, the claw-shaped opening of the hanger had narrowed down from 12 mm to 9 mm, which was insufficient for a 10 mm axle bolt to boldly go where no axle bolt had gone before.

Open your mouth and say ahhh…

I suggested using the edge of a chisel and hammer to gradually open the claw to an acceptable degree. This worked.

The mechanic noticed a wrinkle in the hanger’s aluminium. First he recommended heating and then beating the hanger at a welder’s workshop but I instantly rejected the idea.

With no option left except to have the bike-doctor hammer the hanger, I became an apprehensive patient experiencing his 'piece of cake' procedure.

Later research showed that my 8-metres long gut-feeling was spot-on about the dangers involved in both the repair methods.

A minor diversion here. Interestingly, it stands proven beyond a shadow of a doubt that the word is not ALUMI-NUM but rather alu-min-ium. In 1990 The International Union of Pure and Applied Chemistry (IUPAC) accepted aluminium as the international standard.

The dangers of hammering and heating

Hammering changes the microscopic internal crystal structure (microstructure) of aluminium, but it does not change its chemical composition, basic molecular or atomic identity.

Although bikes usually use fairly strong high quality 6061 aluminium alloy, hard hammering will make it brittle and prone to sudden cracking or component failure (metal fatigue) during a ride.

Heating the aluminium is even worse as it causes thermal expansion, phase changes and chemical reactions. Therefore, keep hammers and blow-torches away from aluminium. I shall not delve into how irreparable the expensive carbon ('plastic') bikes become after a crash.

The mechanic’s third suggestion was to ‘have a hanger fabricated out of steel’, I again shot down an idea that was based on his personal preference but not backed by science.

Research later revealed that an aluminium hanger is designed to fail (bend) and acts like a cheap protector of other expensive components. Like all mechanics here, my man had learnt his trade by the roadside and without formal mechanic's training.

After the hanger was carefully hammered back to about 95% correct shape, minor re-adjustment of the rear derailleur using the cable tension barrel adjuster, gave us smooth and noise-free gear shifting.

A problem remained

After what seemed like a job done, we got stuck again. The hanger’s top inside edge was shaped to fit the vertical drop-out at an angle of almost 110°.

Since it did not fit perfectly, I suggested, “Let’s hammer this in”.

Fearfully, the mechanic put his hands in the air, “Sir, you do it; I won’t touch the bike.”

I wrapped a piece of cloth over the vertical drop-out to avoid scratches and used a spring-loaded locking grip wrench to hold the hanger firmly in position.

A piece of wood was then placed over the hanger’s curved rear end for further protection and then gently hammered.

The L-shape aligned but not 100%. I left it at that and tightened the 5 mm hex mounting bolts using a digital torque adapter atop a ½” drive ratchet.

Wait, one more problem!

The top hole of the hanger had become somewhat oval due to hard hammering. Its 5 mm hex mounting bolt had a retaining notched-nut on the back with two small holes in it. To properly tighten the bolt, a pin-wrench was used to hold the nut in place. I would later make the tool myself. Stay tuned for an entire article on the subject. 

Once at home, I noticed that the torque setting of the top hex mounting bolt had dropped by 50% (to 4 Nm). Furthermore, the hex bolt’s head had become round, hence unusable.

Spare hex nut and bolt

Another visit to the mechanic. He found me a new set of hex bolt and retaining nut. This was successfully torqued to 8.5 Nm (Shimano-recommended range: 8 to 10 Nm).

He even found me a small M10 bolt with 1 mm thread-pitch which I needed for making my own rear derailleur alignment tool. Stay tuned for an entire article on the subject.

Since the hammered hanger’s claw was still not wide enough to fit over the vertical drop-out, I again used a chisel’s edge and a hammer, then twisted the slight bend with a wrench. The rear derailleur’s gear shifting was re-checked and the cable tension re-adjusted with the barrel adjuster.

As a final bit of DIY, I used a permanent marker to paint the scratched hanger black. I thought I heard the hanger cry, “Please leave me alone!”

A final note

Incidentally, a 150 mm digital Vernier calliper is an absolutely essential tool to have in the toolkit. I use a Chinese copy of Mitutoyo (originally an excellent Japanese brand) which runs on a cheap LR44 coin battery.

After long sessions of precision, methodical tinkering and dedication, do enjoy your rides.

💚

Now here is your ANSWER to the quiz: Yes both the hangers are different in shape. The one on the right is the original shape with the correct angles and curves.

Read more CYCLING articles HERE.

©Tahir Gul Hasan, 2026