Shimano Biopace

[Andy260]

I'm looking for a road triple biopace chainset. My 48 toothed one is a bit low and I'm struggling to find a reasonably priced replacement with a 50 toothed or bigger outer ring. I know it's a long shot but Im hoping that someone has one lying around. Thanks Andy

 

[Smurfy]

Rotor Q-Ring will reportedly do something similar if you orientate it correctly on the crank spider.

 

[yostumpy]

I have original 52 and 42 shimano Biopace c/rings, if any good, came off a double. Looks to be loads of life in them.

PM if any good.otherwise I might not see reply