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4 votes
1 answer
523 views

Is this a crack? Came off my Carbon frame for the first time

A guy on his phone just walked out in front of me into the bike lane and I plowed him at about 30kms. I walked away without a scratch and he absorbed most of the impact but my bike did hit the ground. ...
carboncarboncarbon's user avatar
6 votes
2 answers
2k 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, ...
Learning is a mess's user avatar
22 votes
1 answer
6k views

What do I do when I am unsure if damaged carbon fiber 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 ...
mattnz's user avatar
  • 51.7k
4 votes
2 answers
1k views

Replacing Ultegra R8000 'long cage' derailleur (crash repair advice)

Today I did the unthinkable and crashed my pride and joy, a 2018 Specialized Roubaix comp. It's completely my fault I was commuting to work and in my pre caffeine state rode through what I thought was ...
Axemasta's user avatar
  • 323
7 votes
4 answers
6k views

Bending back a bent head tube - is it worth trying?

I have a bike that was in a major front end collision (I T-boned a car). The frame is steel and the bike bent at the head tube, the welds seem to be fine. Pictures below. I am fully aware the ...
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