Advice on chainring compatibility.

[casper2788]

I have a 7402 chainset,Would a Dura ace 7400 inner chainring that i need and is for sale be compatible.Thanks.

 

[Woz]

Just check the BCD and to a certain degree chain width - 8 and 9 speed is pretty interchangeable.

http://sheldonbrown.com/cribsheet-bcd.html

 

[casper2788]

Just check the BCD and to a certain degree chain width - 8 and 9 speed is pretty interchangeable.

http://sheldonbrown.com/cribsheet-bcd.html

BCD is the same just thinking of the teeth profile.