How long can a THM Clavicula crank last?

Discuss light weight issues concerning road bikes & parts.
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mises
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by mises

The answer is at least 8 years in one case. My compact 175mm set, purchased at the end of July in 2005, has just developed a crack near the pinch bolts on the left crank. Averaged over the lifespan, a cost of $111 per year. Not bad for the WW crank category killer, but your results will almost certainly vary.

by Weenie


pawnii
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by pawnii

My older non-drive side arm that used 2 pinch bolts also cracked. Damn thing wouldn't stop squeaking for the next 2 years.
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Juanmoretime
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by Juanmoretime

My Zipp VumaQuads lasted 5.5 years before they had a repairable failure. Cost $145 per year. I decided to sell them instead of re-bonding the insert on the drive side but I know its a doable repair so I guess they could have and are going longer but not on my bike.

Not bad. My 7 year old AX Lightness Sprint is still going strong.
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xnavalav8r
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by xnavalav8r

I've had a set since 2006. They required a repair shortly after I bought them... rebonding the insert for the fixing bolt, but have been trouble free since.

mises
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by mises

pawnii wrote:My older non-drive side arm that used 2 pinch bolts also cracked. Damn thing wouldn't stop squeaking for the next 2 years.
:lol: 2 years!? Sounds like mine. If it wasn't getting worse I'd probably push my luck too, though it's probably not the smartest thing to do.

llhh
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by llhh

Wouldn't it make more sense to talk about ball park mileage rather than years?
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pawnii
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Location: Australia

by pawnii

The 4 years i had them I had all sorts of problems. I brought them used off eBay...very bad idea.
Seems some bastard sold them to me after he crashed them.

-Aluminium bung that the pedals screw into fell out.
-Aluminium bung in the non-drive side arm for the per-load screw fell out.
-non-drive side arm carbon cracked around pinch bolt.
-spindle was compressed or worn where the BB bearing sits on. So the crank always has a little lateral play.







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by Weenie


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