Bicycle Repairman
@bicyclerepairman.bsky.social
Was once told my bike was a "three-speed with five gears." Now posting actual bike repair #BR tidbits here on bsky instead of that other place.
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Google image search thinks these pictures are "visually similar"
Meshing three gears together doesn't work. #BR #StuckGears
But making the gears wildly mismatched isn't helping.
But making the gears wildly mismatched isn't helping.
December 2, 2025 at 9:45 PM
Meshing three gears together doesn't work. #BR #StuckGears
But making the gears wildly mismatched isn't helping.
But making the gears wildly mismatched isn't helping.
Reposted by Bicycle Repairman
Here's a cool photo of a tandem bike with a large collection of batteries between the two riders. It's an electric battery-powered pacing machine on an outdoor racetrack! (France, ca. 1898)
December 1, 2025 at 3:01 PM
Here's a cool photo of a tandem bike with a large collection of batteries between the two riders. It's an electric battery-powered pacing machine on an outdoor racetrack! (France, ca. 1898)
Inspect and correct any faults with rim strips when building or refurbishing a bicycle. #BR
YIKES--I found THREE instances of mis-installed rim strips on the same bike!
YIKES--I found THREE instances of mis-installed rim strips on the same bike!
November 24, 2025 at 11:31 PM
Inspect and correct any faults with rim strips when building or refurbishing a bicycle. #BR
YIKES--I found THREE instances of mis-installed rim strips on the same bike!
YIKES--I found THREE instances of mis-installed rim strips on the same bike!
Reposted by Bicycle Repairman
Extremely bad news for everyone who rides a Rad Power Bike 😢
CPSC Warns Consumers to Immediately Stop Using Batteries for E-Bikes from Rad Power Bikes Due to Fire Hazard; Risk of Serious Injury or Death www.cpsc.gov/Warnings/202...
November 24, 2025 at 7:58 PM
Extremely bad news for everyone who rides a Rad Power Bike 😢
Trek Recalls Bicycles with Coaster Brakes and Replacement Rear Wheels Due to Crash Hazard
www.cpsc.gov/Recalls/2026...
www.cpsc.gov/Recalls/2026...
Trek Recalls Bicycles with Coaster Brakes and Replacement Rear Wheels Due to Crash Hazard
Consumers should immediately stop using the recalled bicycles with coaster brakes and related replacement rear wheels and contact an authorized Trek or Electra dealer to schedule a free repair at the ...
www.cpsc.gov
November 17, 2025 at 8:40 PM
Trek Recalls Bicycles with Coaster Brakes and Replacement Rear Wheels Due to Crash Hazard
www.cpsc.gov/Recalls/2026...
www.cpsc.gov/Recalls/2026...
Making the gears all the same color won't help. #BR #StuckGears
November 17, 2025 at 6:00 PM
Making the gears all the same color won't help. #BR #StuckGears
A chainguard that works!
Actress Virginie Ledoyen shows a fondness for big fenders in a scene from the 1991 film The Children Thief (Le Voleur d'enfants)
Happy #BicycleBirthday, Virginie!
Born November 15, 1976
Happy #BicycleBirthday, Virginie!
Born November 15, 1976
November 15, 2025 at 5:05 AM
A chainguard that works!
Each of these gears could turn freely, so no #StuckGears in this illustration!
November 13, 2025 at 3:06 PM
Each of these gears could turn freely, so no #StuckGears in this illustration!
Reposted by Bicycle Repairman
November 12, 2025 at 8:37 PM
Reposted by Bicycle Repairman
Currently above Michigan!
November 13, 2025 at 2:39 AM
Currently above Michigan!
Making the gears in bright colors won't help them to operate. #BR #StuckGears
November 7, 2025 at 7:06 PM
Making the gears in bright colors won't help them to operate. #BR #StuckGears
Someone tried to "stretch" this tire onto the rim! #BR
Hint: Tires are constructed to resist the force of inflation pressure. Therefore, they are designed NOT to stretch.
Hint: Tires are constructed to resist the force of inflation pressure. Therefore, they are designed NOT to stretch.
November 6, 2025 at 11:11 PM
Someone tried to "stretch" this tire onto the rim! #BR
Hint: Tires are constructed to resist the force of inflation pressure. Therefore, they are designed NOT to stretch.
Hint: Tires are constructed to resist the force of inflation pressure. Therefore, they are designed NOT to stretch.
Lezyne USA Recalls Bicycle Floor Pumps Due to Serious Injury Hazard
www.cpsc.gov/Recalls/2026...
ride.lezyne.com/pages/pressu...
www.cpsc.gov/Recalls/2026...
ride.lezyne.com/pages/pressu...
Lezyne USA Recalls Bicycle Floor Pumps Due to Serious Injury Hazard
Consumers should immediately stop using the recalled pumps and contact Lezyne for a free replacement pump, including shipping. Consumers will be asked to visit ride.lezyne.com/recall to register their...
www.cpsc.gov
November 6, 2025 at 5:58 PM
Lezyne USA Recalls Bicycle Floor Pumps Due to Serious Injury Hazard
www.cpsc.gov/Recalls/2026...
ride.lezyne.com/pages/pressu...
www.cpsc.gov/Recalls/2026...
ride.lezyne.com/pages/pressu...
A single loose bearing locknut can affect many things! #BR
The wheel:
-may not tighten properly
-may not center properly in the frame
-cannot be trued correctly
-may affect proper derailleur adjustment
Always inspect axle hardware on new bikes at assembly time, when it's easier to correct.
The wheel:
-may not tighten properly
-may not center properly in the frame
-cannot be trued correctly
-may affect proper derailleur adjustment
Always inspect axle hardware on new bikes at assembly time, when it's easier to correct.
November 5, 2025 at 5:18 PM
A single loose bearing locknut can affect many things! #BR
The wheel:
-may not tighten properly
-may not center properly in the frame
-cannot be trued correctly
-may affect proper derailleur adjustment
Always inspect axle hardware on new bikes at assembly time, when it's easier to correct.
The wheel:
-may not tighten properly
-may not center properly in the frame
-cannot be trued correctly
-may affect proper derailleur adjustment
Always inspect axle hardware on new bikes at assembly time, when it's easier to correct.
Can you see it? #BR
This "radial" spoke pattern is not built correctly.
Not a big deal on a kid's bike, but if you spoke a pro wheel like this, you're going to get called out.
This "radial" spoke pattern is not built correctly.
Not a big deal on a kid's bike, but if you spoke a pro wheel like this, you're going to get called out.
October 23, 2025 at 7:19 PM
Can you see it? #BR
This "radial" spoke pattern is not built correctly.
Not a big deal on a kid's bike, but if you spoke a pro wheel like this, you're going to get called out.
This "radial" spoke pattern is not built correctly.
Not a big deal on a kid's bike, but if you spoke a pro wheel like this, you're going to get called out.
POP QUIZ: What is a common cause of mysterious flats? #BR
Answer is tn the image [ALT] text.
Fun fact: Both these wheels are from the same bike!
Answer is tn the image [ALT] text.
Fun fact: Both these wheels are from the same bike!
October 14, 2025 at 5:00 PM
POP QUIZ: What is a common cause of mysterious flats? #BR
Answer is tn the image [ALT] text.
Fun fact: Both these wheels are from the same bike!
Answer is tn the image [ALT] text.
Fun fact: Both these wheels are from the same bike!
Living Glow Portable Waist Fans Recalled Due to Fire Hazard; Manufactured by Guangzhou Jiguang Lighting; Sold by HSN
Because lithium-ion
www.cpsc.gov/Recalls/2026...
Because lithium-ion
www.cpsc.gov/Recalls/2026...
Living Glow Portable Waist Fans Recalled Due to Fire Hazard; Manufactured by Guangzhou Jiguang Lighting; Sold by HSN
Consumers should immediately stop using the recalled waist fan and register at https://www.waistfanrecall.info to receive a full refund. After registering for the recall, consumers should disable the ...
www.cpsc.gov
October 11, 2025 at 2:56 PM
Living Glow Portable Waist Fans Recalled Due to Fire Hazard; Manufactured by Guangzhou Jiguang Lighting; Sold by HSN
Because lithium-ion
www.cpsc.gov/Recalls/2026...
Because lithium-ion
www.cpsc.gov/Recalls/2026...
Zyntony Recalls Kogalla Power Banks Due to Fire and Burn Hazards; Sold on Kogalla.com
Because lithium-ion
www.cpsc.gov/Recalls/2026...
Because lithium-ion
www.cpsc.gov/Recalls/2026...
Zyntony Recalls Kogalla Power Banks Due to Fire and Burn Hazards; Sold on Kogalla.com
Consumers should immediately stop using the recalled power banks and contact Kogalla for instructions on how to receive a free replacement power bank, including shipping. Consumers will be asked to fi...
www.cpsc.gov
October 8, 2025 at 9:55 PM
Zyntony Recalls Kogalla Power Banks Due to Fire and Burn Hazards; Sold on Kogalla.com
Because lithium-ion
www.cpsc.gov/Recalls/2026...
Because lithium-ion
www.cpsc.gov/Recalls/2026...
Reposted by Bicycle Repairman
The internet’s addicted to doom. But if you spend any time outside the timeline, the world’s still full of people doing good, weird, hopeful things.
October 5, 2025 at 2:12 PM
The internet’s addicted to doom. But if you spend any time outside the timeline, the world’s still full of people doing good, weird, hopeful things.
ESR HaloLock Wireless Power Banks Recalled Due to Fire and Burn Hazards; Distributed by Waymeet
Because lithium-ion.
www.cpsc.gov/Recalls/2025...
Because lithium-ion.
www.cpsc.gov/Recalls/2025...
ESR HaloLock Wireless Power Banks Recalled Due to Fire and Burn Hazards; Distributed by Waymeet
Consumers should immediately stop using the recalled power banks and contact Waymeet for a full refund. Consumers will be asked to send to support@esrtech.com their order number (not required) and a p...
www.cpsc.gov
October 2, 2025 at 9:53 PM
ESR HaloLock Wireless Power Banks Recalled Due to Fire and Burn Hazards; Distributed by Waymeet
Because lithium-ion.
www.cpsc.gov/Recalls/2025...
Because lithium-ion.
www.cpsc.gov/Recalls/2025...
Reposted by Bicycle Repairman
It still amazes me just how big the refinery the Nostromo was towing is as a model. This BTS photo really gives it scale.
And this was twenty years before the description 'bigatures' was used. I first heard that word on a 'The Lord of the Rings' movie doc, but I'm not sure if it was already in use.
And this was twenty years before the description 'bigatures' was used. I first heard that word on a 'The Lord of the Rings' movie doc, but I'm not sure if it was already in use.
September 29, 2025 at 2:13 PM
It still amazes me just how big the refinery the Nostromo was towing is as a model. This BTS photo really gives it scale.
And this was twenty years before the description 'bigatures' was used. I first heard that word on a 'The Lord of the Rings' movie doc, but I'm not sure if it was already in use.
And this was twenty years before the description 'bigatures' was used. I first heard that word on a 'The Lord of the Rings' movie doc, but I'm not sure if it was already in use.