Should I bin this carbon bar?

[Dales Cannon]

Stop being so pusillanimous. Bin the fucker.

 

[pink poodle]

the only components that have cracked/ let go on me have been alloy or steel.

Do you mean exclusively steal alloys or has there also been trouble with aluminium alloys?

 

[Calvin27]

I bet you probably could, and would it make them any worse to ride? Probably not. It's a case of selecting the correct density though..

I see a trip to Bunnings in your future!

Might have to hit up my old final year project thesis and brush up on vibration mechanics lol.

 

[pink poodle]

Might have to hit up my old final year project thesis and brush up on vibration mechanics lol.

Dildo engineering?

 

[Calvin27]

Dildo engineering?

Depending on the girth, might have the right power spectral density.

 

[rangersac]

Do you mean exclusively steal alloys or has there also been trouble with aluminium alloys?

Have cracked one set of (aluminium) alloy cranks, three alloy frames, and one steel frame. Frames were from commuting, alloy cranks were on the MTB, and let go without warning when I put the power down.

 

[Haakon]

Stop being so pusillanimous. Bin the fucker.

If I was being less timid, I’d just keep riding them!

 

[Dales Cannon]

Steel is an alloy.

 

[pink poodle]

Steel is an alloy.

Go back to the bronze age!

 

[Flow-Rider]

Some of those aluminium bars are getting very thin in the ends and they rely on surface treatments for added strength. I cut a set of Kore bars with a pipe cutter and on the second turn I heard a loud crack and the end just fell off.

 

[hifiandmtb]

Giant bars too I assume?

Anything Giant needs to go.

 

[rangersac]

Steel is an alloy.

For the metallurgists amongst us I have cracked one set of 6061-T6 alloy cranks, three 6061-T6 alloy frames, and one Reynolds 531 Cromo Steel frame. In addition now I think about it I should also add some Mavic rims (they apparently use a proprietorial alloy called Maxtal which I assume is similar to 6061) which cracked on the sidewall, plus some other generic OEM Orbea rims around the spoke holes which were likely 6061 or some derivative.

 

[Flow-Rider]

Giant bars too I assume?

Anything Giant needs to go.

I'm not sure what Giant uses but I can easily see how a crack might propagate from a deep scratch over time and end with a fatal break.

 

[Haakon]

Giant bars too I assume?

Anything Giant needs to go.

They were. What’s wrong with Giant stuff...? They make their own carbon, didn’t think anyone was dissing their carbon manufacturing nous these days.

 

[hifiandmtb]

Coincidence that all your Giant stuff is busted

 

[link1896]

They were. What’s wrong with Giant stuff...? They make their own carbon, didn’t think anyone was dissing their carbon manufacturing nous these days.

Apart from medium and large framed Anthems

 

[Haakon]

Apart from medium and large framed Anthems

Guess I didn’t ride either of my medium Anthems hard enough..

 

[pink poodle]

Guess I didn’t ride either of my medium Anthems hard enough..

There's a question nobody needed to ask!

For the metallurgists amongst us I have cracked one set of 6061-T6 alloy cranks, three 6061-T6 alloy frames, and one Reynolds 531 Cromo Steel frame. In addition now I think about it I should also add some Mavic rims (they apparently use a proprietorial alloy called Maxtal which I assume is similar to 6061) which cracked on the sidewall, plus some other generic OEM Orbea rims around the spoke holes which were likely 6061 or some derivative.

But no issues with bronze alloys?

 

[Haakon]

There's a question nobody needed to ask!

Or - I’m not a lard arse and know how to not abuse a bike...?

 

[ForkinGreat]

Rule of thumb. If you have to ask if something is too damaged to use, it is.

+1. I doubt anyone here would say it was all good to use, and then have it on their conscience when your carbon bars fail horribly. and on a sketchy trail.