Originally Posted by
plonz
Just curious, does it have to be 9 of 10 or could it also be 9 of 9? I was under the impression cog spacing was the same and you just used a spacer when using a 9 speed cassette on a 9/10 hub.
9 of 9 won't fit into the space of a 7 speed cassette. The bike's a 7 speed, 126mm rear rather than 130mm, as I understand it, and you won't be spreading aluminum or carbon rear triangles.