Questions tagged [damage]

Dents, tears, scrapes, scratches to your bike received in falls, crashes, parking failures, roof-rack collisions, etc.

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3
votes
1answer
28 views

How can I repair carbon damage near my bottom bracket?

I have had a few gnarly chain-drops that ate at my Open U.P. carbon frame. I thought I just had some chips in the carbon, but today I removed my crank for a full bike clean and realized that the ...
2
votes
1answer
328 views

Aluminum fork dropout potentially compromised - advice?

I hope y’all can give me some advice. I bought a bike, had it shipped, looks great except one thing — the fork was slightly damaged in shipping. It’s carbon but the aluminum part that attaches to the ...
3
votes
0answers
85 views

Carbon frame chipped by chain - how to repair?

I found out my chain is damaging my frame near the cassette. How can I repair this? It was damaged by my cassette in the indoor trainer which I am not using anymore. This is how it looks:
2
votes
4answers
1k views

Scratch or damage on carbon frame

I found this 'scratch' on my carbon frame on top of the front derailleur. Not quite sure when or how it appeared. Could this be more than a scratch?
7
votes
2answers
814 views

Cycled through pothole on carbon frame - damaged?

Yesterday while out on my daily exercise (I live in London) I had to cycle through a pothole (bus too close behind so couldn't swerve or stop) that jolted the whole bike. I then noticed a rattling ...
1
vote
3answers
334 views

Rear derailleur bent (not derailleur hanger)

Got a (heavy) plastic bag stuck in my rear derailleur of my <1 year old Salsa Journeyman Apex 1, the bag fully wrapped into the derailleur wheels while I was biking at about 10-15 mph. I had to ...
2
votes
1answer
53 views

Bottom bracket damage work-around

I built up a Specialized Rockhopper over this last summer, ending up with a sleek, blacked out, Deore & XT equipped thing of beauty. During a brief stop at a buddy's place, the 12mm Kryptonite ...
3
votes
4answers
2k views

Should I buy this bike with a dent in the top tube? Is it safe?

I'm considering buying this used steel-frame bike. But the top tube has a small dent (about one-third of the way from the saddle). Is this a problem? I plan to use it daily (~6-7mi) for commuting to ...
8
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7answers
6k views

Can this crack in the steel chain-side dropout be welded?

I have a thru-crack on the driveside dropout near where it meets the chain stay. The bike is an early 1980's steel frame Trek mountain bike. See pics. Bike rides fine otherwise and I have invested ...
11
votes
6answers
4k views

Warranty on lock damaged during attempted theft

Someone attempted to steal my girlfriend's bike tonight and they damaged the lock. Do you guys know if we can use the warranty to get it exchanged? The lock has a 2 year warranty and I'm planning to ...
13
votes
4answers
4k views

Front disc brake wobbling / grinding on pads after full braking and minor plunge

The front disc brake grinds after a light accident with full braking and plunge. To give an idea of the forces involved: The bike fell to the left, mostly cushioned by me. The bike had no more ...
3
votes
4answers
548 views

Tire blowout on long descent

I was using mild braking on a very hot day, a couple miles down the hill the back tire blew out the sidewall on a Continental Ultra Sport 700x23C inflated to around 100psi. The rim was quite hot to ...
5
votes
0answers
294 views

Scrap it or not

I purchased this Bottecchia full-carbon frame a a few years ago and built it up using Shimano 105 components. Shortly after the build was done it came off the rear mounted rack on my car and went ...
4
votes
2answers
250 views

E-Bikes - Is it bad for the bike to run out of battery?

Today, I ran my e-bike out of battery for the first time. Interestingly enough, the bike didn't actually turn off, but automatically moved the mode from "Eco" (light pedal assist) to "Off" (no pedal ...
0
votes
2answers
191 views

Rear wheel slipping out of slot after attempting a 180

So whenever I try a 180, I seem to put quite a bit of sideways force on the rear wheel when I land because I never make it the whole way. After the landing, it causes the wheel to come out of its slot....
2
votes
2answers
316 views

Is this damaged aluminium frame unsafe to use?

Hello I have a Giant Seek 3 aluminium frame where somehow the rear rim has rubbed the frame creating a hole as shown in the picture. On the other side there has also been some rubbing/scratching but ...
2
votes
2answers
319 views

Help please - Dent in top tube of double butted aluminium frame

I have a ridgeback velocity which is labled as double butted aluminium. Around the middle of the toptube is a dent shown in the photo. There is also a short line above it which I can feel with my nail....
0
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1answer
80 views

Damaged in a crash

Hey so a week ago I got a new bike. And when I get something new I try to keep it brand new as long as possible and not taking a single damage, even the touch of wind it makes me feel that damaged it. ...
-1
votes
4answers
178 views

Is not changing/shifting gears much bad when riding around?

I usually would set the gear to one level and leave it at that if I felt comfortable -- however, I just heard of someone changing gears on stops and whatnot to help with the initial inertia from full ...
2
votes
1answer
167 views

Should a cross-threaded (but functional) freehub body be considered safe?

I cross-threaded my cassette lock-ring on a pair of Fulcrum racing 4 DBs (aluminum threads AFAIK). Upon removing the cassette it looked like the top of the threads were slightly damaged, but I was ...
4
votes
3answers
2k views

How to assess safety of carbon frame after crash?

I was recently hit by a car which pulled onto a roundabout. The driver hadn't seen me. The car hit me hard enough to actually snap the rim of my rear wheel. The bike has a carbon fibre frame and ...
1
vote
1answer
176 views

Frame with dent

I recently bought a bike and then realized it had a dent on the top tube. I would like to know your opinion if it is safe to ride. The bike is a Devinci Cameleon made from double butted aluminium. The ...
14
votes
4answers
6k views

What options do I have if my rear derailleur breaks when I'm out on a trail?

I ran into an unfortunate situation earlier this week. I was out on a mountain bike trail, alone — just me and my hardtail. I'm pedaling, when I suddenly hear a CRUNCH and my bike stops. The hanger ...
3
votes
3answers
343 views

Headtube dent, how safe is it?

See picture below, I am in this situation with a new alluminium frame (don't ask me how I ended up here, it's a heartbreaking story.) It’s a Cinelli Mash Parallax. The headtube has a dent and I don't ...
9
votes
1answer
175 views

Is this aluminium rim saveable?

I have an 8 inch rear wheel off an adult scooter. It appears to have suffered crush damage - at a guess someone's driven a car over the wheel while on its side. The bend is smooth and covers perhaps ...
12
votes
4answers
3k views

Big dent on frame: How did this damage happen?

I just bought this second hand Ridgeback Impulse folding bike for my partner. I'm a wheelchair user and it was dark and rainy when I collected the bike. So... I didn't check it (facepalm) I just got ...
3
votes
2answers
276 views

Is it safe to ride this frame?

I don't have a clue what happened… Got the frame this way. Mountain bike is Lapierre Zesty 2014.
4
votes
1answer
293 views

I keep destroying new tubeless tires!

My "Googling" haven't exactly yielded many results with people having such obnoxious issues with destroying tires as I do. In short, I destroy such a high number of tires that its becoming one of the ...
2
votes
2answers
730 views

Cone of axle damaged?

Looking at the provided image, is the cone sufficiently damaged that it need replacing? Thanks!
0
votes
3answers
4k views

OK to ride with a slightly bent mech hanger?

My rear derailleur took a knock from a fall, and the entire shifting range moved inwards by about one sprocket width. I suspect, but am not sure, that the mech hanger got slightly bent (could be ...
4
votes
3answers
256 views

Is this cone nut in proper condition?

This is the original cone nut of a new coaster brake hub I bought recently. I didn't install it yet, it's new. What bothers me are those weird stains / corrosion signs on the bearing surface. It ...
0
votes
1answer
156 views

Fatigue Considerations: Over-tightened Front Derailleur Dent

I'm looking into purchasing a used bike to get into touring/bikepacking. There is a particularly low price Soma Double Cross Disc bike I've found on Craigslist that I think would be perfect... with ...
0
votes
2answers
147 views

Rim shot? Goes badly out of true at medium tension

I am pretty sure this rim is shot, but wanted confirmation and/or a better understanding of what's up. I'm fixing up a donor bike that was pretty apparently stored outside for years. Despite that, ...
0
votes
2answers
183 views

What can one damage by bending the wheel?

What parts may be damaged by bending rear wheel manually with very high force? My father bent rear wheel several times with such high force that the tire contacted the seat stays. Could he have ...
3
votes
3answers
1k views

Can a tire that blew off a rim be safely used on another rim, and under what criteria?

I have a set of tires where one of them blew off the rim on my bike after I slightly over-inflated it. I originally asked a question about this here, and there are more details at that link. The ...
3
votes
3answers
235 views

Is this crank usable or should it be replaced?

I've been suffering from weird noises while pedalling for a couple of weeks. Noise has been isolated to the left foot, its definitely not the right side. After an inspection revealed no cracks or ...
1
vote
2answers
100 views

I have a vintage Pinarello with a crooked fork

I have a vintage Pinarello road bike with a bent fork. Like if I am riding the bike and let go of the handle bars the front wheel turns to the right. Usually if you let go of the handle bars the ...
5
votes
1answer
722 views

Dent in titanium MTB frame, is the frame OK to ride?

I have a early 90s Basso Ti Hardtail MTB bike (made by Litespeed I believe) which I bought from my room-mate back in the day. I've kept it going with regular maintenance and occasionally replacing ...
18
votes
6answers
7k views

Does riding high gear up a hill damage a recumbent bike?

I have a recumbent trike with 26 gears. While normally I would shift to a low gear when going up a hill, I found that I can go up hills in the highest gear, the configuration that gives me the fastest ...
8
votes
5answers
3k views

Rear Tyre torn at rim - what was the cause?

I had a blowout the other day. On investigation, it was a C-shaped cut in the tube. It patched okay and on reinstalling I found this culprit : The tyre is not new but its not old either - plenty of ...
1
vote
2answers
9k views

carbon frame chipped

today while I was riding I lost control of my bike; it was nothing serious, I even fell "standing", but my bike fell on a rock and the carbon frame was chipped. Should I worry about the damage? I ...
9
votes
1answer
983 views

What does it take to damage an internally geared hub?

What behavior can easily damage an internally geared hub (Shimano Nexus or Alfine for example)? can one jump off high (say 50cm) curbs? can it be damaged by shifting gears under too much torque? ...
5
votes
1answer
550 views

To what extent am I responsible for stones flicked by my tires?

Every now and then when I ride over a peanut sized stone the tires squeeze and accelerate it to the side at up to 30m/s. So far I have only hit a building and a car which ended up with a scratch. Am I ...
2
votes
1answer
107 views

Fox Talas FIT RLC 32 - broken lock and problem with the right leg

I just finished my first Marathon race today, it was super cool, the best MTB experience in my life -- but there was a super frustrating part. Something broke in my fork right leg, and now that one ...
6
votes
2answers
2k views

Why are 36-spoke wheels a touring thing?

I've been looking at tourers recently and they tend to have 36 spoke wheels (as does my hybrid on the back after I broke my original rim). What I don't understand is why high spoke counts aren't used ...
16
votes
5answers
6k views

How does a bike 'degrade' whilst unused

What (if anything) will happen to a bike whilst it sits unused, that wouldn't happen to it whilst being used for a work commute over the same period? Suppose I take a 3 month sabbatical and leave my ...
1
vote
1answer
1k views

What to do with scratched top tube on carbon fiber frame with no structural damage?

No physical damage, if i press into it nor while riding. I did wipe the surface to get rid of dirt and paint chip. Attached also a video to demonstrate the scratch. Should i put epoxy or tape or nail ...
2
votes
1answer
180 views

Do you know as soon as you are riding on a flat?

Today I did a 55km ride and at some point I got a puncture on my rear tyre. The problem is that I do not know if I kept on driving for a while on it and damaged the tyre or the rim, although the rim ...
6
votes
3answers
588 views

Worried I damaged my fork fitting crown race

I'm an idiot. I've been working on building up a Surly LHT frame and was all going fine until I got to fitting the crown race. I couldn't get it to fit properly and instead of making a cup of tea and ...
0
votes
1answer
78 views

Lockout Lego on after going down a flight of stairs

I recently was biking on some roads with my Specialized Pitch Sport 2015 MTB when I found a dirt trail, and forgot to shut off my lockout. I did a bit of hopping on my suspension, but the path was ...