Questions tagged [repair]
Repairing your bike when something is broken. REPAIR is not the same as MAINTENANCE, a separate tag. Repair is what one does only when something is broken. Maintenance is what one does on a regular basis.
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Help identifying this $25 ebike
I picked up this folding bike for $25 thinking I would google it and have all the info I needed to get it functioning.
Any help finding documentation would be great, what kind of battery can I plug ...
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Shimano STX rear shifter, broken spring
I have to repair a Shimano STX shifter 7 speed (from a Raleigh MT200 bike from 1995). It has a broken spring, and I am almost sure that is the only thing to be repaired.
It is similar to that ...
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Rear hub is sticky and clacking when backpadeling
I'm having trouble with my Nexus 8 Hub. It started to feel strange recently after a tour. I got help by someone in a free bicycle garage. We opened up the hub, gave it an oil bath and greased all the ...
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Gear up lever will not move
I just got a new bike and unfortunately fell off it on the first ride, now the lever to change gear for my derailleur Mezzu Microshift is stuck in the position it would be if you had upped a gear ...
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Bosch eBike wiring diagram, where to find?
My RieseMüllerPackster80 refused to start today.
I guess there is a bad connection somewhere but as all I could do was plugging the battery and computer in and out, I am not wiser whether cabling has ...
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Identifying Rear Axle Size
I've got a bent QR rear axle and am looking for a replacement. Seems that these come in 9.5 and 10 mm sizes with a couple of different threadings. When I measure the OD of the threads I get around 9.8 ...
- 7,046
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New tire tube and grinding noise?
I punctured my tire tube so i had to remove my back wheel out and replaced the tube, when reassembled, derailleurs started making grinding noises.
I checked where the sound was coming and it was ...
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Need help with Columbia Lauderdale electric mountain bike
I was recently riding my bicycle, and hit a speed bump when it turned off under me.
I checked out the bike and in the front motorhub there was a silver wire coming out of the bolt part. It looks sort ...
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Play in headset
I serviced my headset few times on my new bike, each time without problems.
But when I was serviced it few days ago, I had play in the headset that I couldn't get rid of.
First I unscrewed top cap, ...
- 11
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441
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Shimano 105 r7000 front derailleur hard and clunky shifting, shifter harder to shift
A total newbie to DIY bike repair here, and my Shimano 105 r7000 FD is shifting really harshly after a wash. Washed it with dish soap plus water solution, however I did not give the FD any specific ...
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How to fix Shimano E7000 Error 010?
Can anyone guide me to clear the E010 error code on a Shimano E7000? I tried all the steps according to the manual but can't resolve them.
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Rear wheel keeps ending up squint, axel on cassette side lateral movement?
I have an old(?) 2010 Carrera Vulcan MTB and the rear derailleur hanger broke a few months ago (my son accidentally bashed it with his bike). Even though the bike is old, it has not really seen much ...
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Plastic Seat for Vintage Kids Tricycle
Anybody can tell me where to find this type of plastic seat?
It sits directly on the tube, and holds on with a bolt on the middle.
Thanks.
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Lowrider style bent forks techniques
Would a 24 inch bent fork fit on a 20 inch frame? Is there even a 24 inch fork? Would a 26 inch fit? Also if it doesn't fit in could I just add to the 20 inch - would you be able to extend it making ...
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How to reduce pedaling resistance
I brought my hybrid bike to Evans Cycles recently to get the rear gear mech replaced after I broke it.
When I got the bike back, it was significantly harder to pedal. I tried moving my gears lower ...
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Why are my quill pedal cages "wobbling"?
The plates and connectors on my old quill pedals "move around" in relation to the pedal axle itself: In the photo below, I'm pushing the pedals to opposite sides to show how the pedal cage "distorts". ...
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Confused about tire leakage, valve not attached
I’ve gotten a second hand mountain bicycle (felt brand), now the back tire is leaking air and is unusable.
First, I thought that the tube was burst and would need replacing. But now I am just confused ...
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Tube size inquiry for my bike
I’ve taken out the old tube which measures 700x35 45c but I could only find 700cx35 38. Will this fit ok? Many thanks
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Should I change Damper body of SR Suntour XCM Fork
I've disassembled the fork and checked the "Damper body" whether it was working correctly.
It sounded a little bit strange. but I am not sure whether it was OK. The reason for disassembling ...
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Tacx Flow loud noise, HELP!
I was wondering if anyone would be able to help me. I am a complete novice and know nothing about any of this so I apologise. I recently purchased a Tacx Flux secondhand and have attached my bike to ...
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How to fix bearing cup for fixings loose wobbly wheel hub of old bicycle?
I have watched videos for Bicycle Freewheel Disassembly/Assembly, and disassembled my damaged bicycle. The back wheel of it started to Cranking, and by opening its part based of this video instruction:...
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Fixing up a rusty old Rallye mountain bike
I bought a Rallye mountain bike from Facebook Marketplace last year and did most of the major overhauling then as well. It was covered in mud, gunk, rust, had broken pedals, etc. So I had replaced the ...
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Fluid trainer, repair leak?
I have a Travel Trac (Performance Bicycle) Century V fluid trainer, vintage c. 2005, that I've pressed into heavy-duty service during the pandemic.
It's been working well these past months, but seems ...
- 161
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Bicycle pedaling resistance on single speed e-bike
Recently, I've bought an ebike that is about 2 months old now, I've maybe gotten 100-150 miles off of it as a daily commuter. When I pedal, it would have a lot of opposing force or friction, and ...
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Spin doctor Essentials II pump not working properly
I attach the pump head to the presta valve. It attaches properly and even a few PSI, like about 10 psi, go in and then the pump handle just wants to spring up and is very difficult to push down. I can ...
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Is the Trek Navigator 200 too hard to restore
I got a freecycled Trek Navigator 200 that based on my assessment seems to be from 2004.
I have repaired one bike before and was thinking about taking the this one as a new challenge but it seems to ...
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Shimano SPD pedal - visible seal ring
I recently got a pair of XTR M9120 pedals. Today I noticed an elastic ring visible on the axel, and bits of grease on it too. The ring can be seen on the service manual
This has happened on both ...
- 367
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Rear Hub Axle Appears Bent – Causes and Repair Strategy
I had my rear wheel off of the bike noticed that as I spin the axle it appears to be bent – the freewheel end of axle, for lack of a better way to describe it, orbits the centerline of the axle.
...
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