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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1answer
60 views

repairing Meidai Top pump?

I've got a very old MeiDai Top floor pump, like this picture ... It suddenly stopped working, no resistance whatsoever from the plunger. I'd like to repair it. So far, I bought this "741" ...
2
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1answer
59 views

Structural Stability of Carbon Rim

I recently purchased some carbon rims for my road bike and there appears to be some buldging forming around the rim. I'm no expert in carbon fibre and I was wondering whether the wheel is still safe ...
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3answers
627 views

Bike back wheel came loose a bearing fell out, safe to wheel to repair shop?

Had my back wheel come loose during a ride, and when I was pushing the bike one of the bearing balls fell out from the axle area I assume. Is it safe to push the bike to repair shop and how much ...
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4answers
693 views

Cannot put a tire whatever I do

I cannot put a replacement tire on my rear wheel, whatever I do, have spent half a day on this. It just should not be so extremely difficult, I have tools and it is not the first tire I am replacing ...
5
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1answer
430 views

Replacing inner tubes & tires - tube seems too large for tire

I inherited an older road bike from my sister that I wanted to fix up for my daughter. The tires and inner tubes needed to be replaced. The existing inner tubes were old and faded, but I could read a ...
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1answer
76 views

Carbon Bike Frame Chip At Rear Wheel [duplicate]

I was wondering if this is fixable?
5
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0answers
74 views

Has anyone successfully changed the battery in a Knog Blinder Mini Dot?

I have a pair of Knog Blinder Mini Dots which were left with their non-user-replaceable LiPo batteries flat over winter and now won’t take a meaningful charge. I’m handy with a soldering iron but less ...
3
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2answers
308 views

Old Motobecane pedals without bolt on axle - How to remove?

I took off some old pedals from a motobecane frame. I wanted to change the bearings but figured out there is no bolt. I have looked everywhere but can't find the model and how to remove it. I thought ...
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7answers
3k views

Worth repairing?

I’m a complete noob getting back into cycling after 15 years of not riding. And loving it! But I bought a bike about 4 years ago and started using it and now it’s got a heap of problems, which I've ...
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2answers
108 views

My bicycle's rear shock is clicking and making a squishing noise. Do I need a new shock or does it just need to be tuned?

I bought a used bike and on the first day, it made a small clicking noise whenever it came back up fully. It also made some squishing noises whenever I compressed it and whenever it started ...
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2answers
61 views

I can't find that specific part (Lasco cf-58 d-11 170) , is there any other crankset that would fit my bike?

I am trying to repair an old bike of mine to gift it to a friend. One of the pedal arms has broken off so I am looking to find a replacement part that I can swap for the old one. The model of the ...
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2answers
149 views

Vertical mark on chainstay?

I bought a used 1990's steel bike the other day and have disassembled it for repainting. However I came across a small patch of missing paint on the drive-side chainstay, which had apparently been ...
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1answer
72 views

Gear slipping on Cannondale Habit

I have a Habit ebike with 1,700 kms on it. I was having slippage on gears and my bike dealer fitted a new chain and new cable but now it is worse. When looking at the derailleur in the 2nd gear from ...
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5answers
2k views

How much wobble is too much?

My back wheel has a really small wobble maybe a millimeter of movement if you push it sideways, it is barely noticeable but you can definitely feel it. Should the wheel be completely solid or is a ...
1
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1answer
108 views

Rear wheel wobble in a geared bike

I have a Bike with gears. The rear wheel started wobbling a few weeks back. At first my chain kept getting off every now and then and I couldn't figure out how to fix it permanently. So I stopped ...
7
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1answer
2k views

Is it safe to ride the carbon bike with a small crack on the bottom of the chain stay? Looks cosmetic but fails the tap test

The chainstay cracked after air travel. Update: I have brought the frame to a carbon repair shop for repair. The cost would be 500ish, including the touch-up paint. Tips for future flight travelers: ...
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0answers
38 views

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 ...
0
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1answer
39 views

Stuck/stripped plastic cap - Rock Shox Judy 1

I'm servicing a Scott Reflex 40- I suspect 2006 model (bought 2nd hand), with Rock Shox Judy 1 front forks. I can disassemble the RHS (facing the shocks) but the LHS I am unable to remove the plastic ...
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0answers
63 views

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.
5
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1answer
831 views

Dent near bottom bracket on vintage steel frame

I just bought myself an old vintage Koga Miyata and just realized today that there's a weird dent on the frame near bottom bracket. Is this something I should be worried about? Or is it normal with ...
1
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1answer
149 views

Water bottle rivnuts preventing dropper post getting low enough, carbon frame

I didn't realise this bike had a second set of drink bottle bolt holes on vertical length of the front triangle, they're stopping the seat post getting as low as I would like it. If I drill the ...
10
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2answers
758 views

Method for shortening a damaged hydraulic brake hose?

I had an incident recently that resulted in a damaged hydraulic hose. It was munched by the chain. Curiously, the brake still holds pressure and functions, though I have limited confidence in it. I'...
9
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2answers
2k views

What are the risks associated with truing wheels without the aid of a truing stand?

About six months ago something got caught in the spokes of my back wheel. The wheel was functional, but visibly untrue. I took it home and trued it with a spoke key, continually adjusting the rim ...
3
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2answers
351 views

Fixing helmet padding

I was trying to remove the helmet padding to wash it and the two layers separated. Instead of replacing the helmet which is wastful, can anyone suggest ways (non-toxic glue?) of repairing the padding?...
0
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1answer
59 views

Fitting a new tyre and cassette

Hello I recently had one of the cogs on my cassette snap due to lack of care on my side obviously (the smallest one). This occurred due to my chain skipping and putting an unfortunate amount of force ...
0
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1answer
56 views

Tyre not aligned with rim [duplicate]

So I just replaced my bike rim since the spokes & hub were way too old. I go on and and install same tyre but with new inner tube - so essentially only things that changed are rim and inner tube. ...
6
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2answers
961 views

Post crash damage assessment: can I keep this carbon fork and this front wheel?

Today I crashed. I had to slam the brakes hard downhill as to avoid a worse crash. Split second decision, it's the way I explain it. As a consequence I went over the handlebars. Landed not too poorly, ...
5
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2answers
389 views

What is correct procedure to remove freehub body?

I want to replace a defective freehub body and I am confused on how I should unscrew it from the hub. This earlier question (Cannot remove freehub body) explains which direction to go between CW and ...
13
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11answers
2k views

Does anyone patch inner tubes anymore? [closed]

Many years ago I bought a 100 pack of REMA round patches from Amazon. And back then you could buy patch kits for $1 that had a few patches, something abrasive to sand with, and a tiny tube of ...
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0answers
53 views

My axles kept on breaking [duplicate]

Two weeks ago my rear axle break into two pieces and I replace it with a new one. Yeterday that axle broke while trying to lift the front wheel up. Do you know what might be causing this?
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2answers
110 views

Sidewall cut on brand new tyre - permanent fix possible?

I bought a new set of tyres (Continental Grand Prix 5000). Being an idiot, I managed to cut the sidewall of the tyre with a knife while removing the packaging. I have looked at repairing it, and came ...
1
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1answer
127 views

Front wheel twist and move in dropouts when braking or on aggressive turns

I discovered that my front wheel moves on the dropouts. I have searched the web to know why? But most of answers was "replace quick release and problem gone" so I replaced the quick-release ...
0
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0answers
82 views

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 ...
10
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4answers
2k views

Unable to get a tube replacement to last

I am running into a consistent issue, my last two tubes replacement for the back tyre of my cycle got punctured same way at the neck of the tube. I am beginning to think if there is something ...
12
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1answer
1k views

What do I do when I am unsure if a carbon fiber component is safe to use or needs replacing or repairing?

Intended as a canonical answer to the many questions we have about damage to carbon parts. It is well known that carbon fiber parts can be damaged and fail, and carbon parts can be fragile when ...
1
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1answer
133 views

Purpose of this screw on my mountain bike's (BCA 29SC) rear dropout/derailleur and how to fix?

so recently I have been having problems with my bike: the wheels tended to slip out of the dropout and rub against the frame of the bike. However, I had found a way to fix (reorient) the wheel ...
1
vote
1answer
101 views

Can't figure out the origin of loud screeching noise

I've had my bike for over 1 year. Since the day I bought it it's had this problem where it makes a really loud screeching noise coming somewhere from the back. I didn't notice it at the store because ...
2
votes
1answer
246 views

Shimano Deore SL-M590 shifter lever stuck

I have the Shimano Deore SL-M590 9-speed shifter, bought new and used for about 3 years. On my ride today, the upshift lever got permanently stuck forcing me to complete my ride in the lowest gear. I ...
6
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3answers
789 views

Are bike repair shops averse to changing chainsets?

I have found that bike shops will happily replace cassettes and chains. In contrast, even if a chainset is showing wear, they will be unlikely to change it. My brother just went to get his bike ...
2
votes
1answer
493 views

Is losing power when pulling Shimano GRX lever a bleed problem?

Recently I had an accident on my bike, and my front brake 11-speed, front brake GRX 600 shifter isn’t braking well anymore. The shifter took a bit of damage in the fall. Initially it didn’t shift, ...
0
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1answer
56 views

Name of colour of paint on Kink Volte BMX

I am looking for the color name for restoration on my kink volte? serial # aca10e001651 Any ideas would help. I'm hitting a brick wall with google.
0
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1answer
125 views

I just put too much air and tired popped can i fix it with bike patch i never patched bike before

I put to much air in my bike tire and popped it can a bikerepair patch kit fix because I never patched so bike before
0
votes
1answer
110 views

Despite removing and greasing it, my pedal still won't rotate - I can't figure out why

Yesterday out cycling on muddy farm roads, my right pedal seized up and stopped turning (the crank turns fine, but the pedal itself doesn't turn to stay parallel with the ground, making cycling ...
1
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1answer
109 views

How to remove a stripped bottle cage mount?

I was taking off my bottle cage on my Specialized Secteur sport triple, and I found the mount was spinning with the bolt. (I believe it is called a rivnut but I am not 100 percent certain.) Before I ...
2
votes
1answer
96 views

Help me fix a loose pedal-arm on a fixie!

Basically, after a few months of riding my bike, the pedal arms start to loosen up every few weeks after skidding/backpedaling. I ended up having to pedal with one foot for at least 2kms today (I know,...
4
votes
1answer
216 views

Consultation needed! To repair or throw out?

i found these two bikes by the dumpster- Dahon Boardwalk folding bikes. They are totally rusted by the salty air (it's a humid salty beach climate). The chain is rusted and when I push the pedal, the ...
5
votes
2answers
610 views

broken presta valve confusion

Not a big bike person so my information could be wrong. My bike tire leaks air whenever I fill it and I know its coming out of the valve hole. I did some research and found that its a presta valve so ...
6
votes
1answer
1k views

two grooves in wheel rim

Schwinn midtown bicycle, when replacing brakes I see the wheel has many grooves as shown in picture. I do not remember how it was before. Is this condition normal for the wheel rim? Photo of the old ...
4
votes
1answer
128 views

Damaged full-suspension linkage surfaces - creaking noises

I just got a brand new, high-end aluminium full suspension bike and after the first ride the bottom frame linkage (the big one, near the cranks) started making loud noises (video link with sound). ...
6
votes
1answer
147 views

Ultegra 6600 right shifter lever alignment

Have a set of Ultegra 6600 SL shifters that I'd love to put to use, but encountered an oddity with the right hand (rear) outer shift lever. It appears the lever return goes too far and so as a result, ...

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