Suspected bent Campag Record crank??

nospam-<< I would have thought it would take a lot of force to damage a crank.
Can
anyone enlighten me as to the likelihood of this scenario?? >><BR><BR>

It does take a lot to bend a crank but it's not unheard of. If the crank arm
is straight, that is, the pedal still rotates in one plane, then just use it.
Do not try to bend anything of the crank back tho.

Peter Chisholm
Vecchio's Bicicletteria
1833 Pearl St.
Boulder, CO, 80302
(303)440-3535
http://www.vecchios.com
"Ruote convenzionali costruite eccezionalmente bene"

If you want to isolate the problem... remove the crank arm and check
the runout of the BB spindle .. if it runs true, then it has to be a
problem with the crank or spider.
I saw a bent BB spindle yesterday on a mountain bike... but it had a
fairly long exposed length of spindle outboard of the bearing.

charlie

On Mon, 27 Sep 2004 11:23:00 +1200, "Peter D" <[email hidden]>

Quoted message said:

Hi,

Unfortunately I was in a crash in a race on Saturday.

Initially the damage didn't seem to bad as I had slowed a bit and landed on
the grass verge.

My big chainring was bent outwards enough to make it unuseable. The small
ring appeared to be OK.

I removed my big ring and tried to true it by clamping between wood and the
hammering with a block of wood. It is now at least rideable.

However when I re assemble and put it back on the bike and spin the crank
there is also a tiny blip on the trueness at the same place on the small
ring. This area is very close to the crankarm.

I am now very concerned that I have bent the crankarm. I don't want to waste
money on new chainrings when I need a whole new chainset.

I would have thought it would take a lot of force to damage a crank. Can
anyone enlighten me as to the likelihood of this scenario??

The chainset is 2003 10sp Record.

Thanks
Pete

Charles Beristain said:

If you want to isolate the problem... remove the crank arm and check
the runout of the BB spindle .. if it runs true, then it has to be a
problem with the crank or spider.
I saw a bent BB spindle yesterday on a mountain bike... but it had a
fairly long exposed length of spindle outboard of the bearing.

I saw a bent BB spindle on my friend's mountain bike... the RaceFace DH BB
spindle had yielded about 4 degrees or so... the cranks were fine.

--
Phil, Squid-in-Training