Technical & Reference Section > Tech and Restoration

please help ...chain ring bolts....

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dodgydave:
got a powerdisc ..cant get the bolts undone ..a bit rounded & turning at back ...anybody any ideas ..how to get them off ..cheers guys dd

theRuler:
the threads are really short on them bolts
they don't usually cause any probs

try some wd40

boiling water could free them too

GREMLIN:
I always use one of these Sugino chainring bolt tools whenever tightening, un-tighteneing etc.
Fits in and stops the back of the bolt turning. Only cheap online too. Saves using a screwdriver or pointy object, which usually for me ended up slipping and stabbing myself or scraping the chainring/spider/powerdisc.
If you get your hands on one of these you should find the bolt will undo quite easily. Even if you have to tap a screwdriver into the rounded out allen key holes.  :daumenhoch:   G.

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