08-23-2022, 04:49 AM
Dura Ace 9000 compact crank set (2016 done 12000km)
Large chain ring collapsed inwards/sideways behind crank.
Never heard of this happening before.
Noticed a slight wobble early in the ride - suddenly collapsed when put under strain at end of a descent - overlapping the small chain ring and so rendering the bike unrideable.
The metal covers either side of the large ring got bent and somewhat distorted.
Question is: is this just a matter of replacing the chain ring or does the damage to the covers mean a whole new crank set?
Thanks!
Adam
PS Struggling a bit to attach photos - hope it worked!
Large chain ring collapsed inwards/sideways behind crank.
Never heard of this happening before.
Noticed a slight wobble early in the ride - suddenly collapsed when put under strain at end of a descent - overlapping the small chain ring and so rendering the bike unrideable.
The metal covers either side of the large ring got bent and somewhat distorted.
Question is: is this just a matter of replacing the chain ring or does the damage to the covers mean a whole new crank set?
Thanks!
Adam
PS Struggling a bit to attach photos - hope it worked!