Very nicely made 28 tooth inner chainring designed for the Mavic 637 mountain crank set but due to it’s hard wearing finish and low teeth count it would be ideal on a touring triple set up too. BCD is old mountain bike ‘standard’ – 74, to be run with 110 middle and outer rings. We have one outer Mavic ring too to match, unfortunately we don’t have any more!
- 28 tooth
- 74 PCD
- Hard anodised in black