A bit of a novice, but I would like to know if someone can help me out. I am considering upgrading the groupset on my CAAD13 (specifically this model: https://www.cannondale.com/en/bikes/road/race/caad13/caad13-disc-ultegra) to something with electronic shifting (partly driven by this deal: https://www.sigmasports.com/item/Shimano/Ultegra-R8170-Di2-Disc-Groupset/10GPZ#reviews).
I was wondering if someone could tell me if this group set would be compatible with my bike? I am concerned that the outgoing set is 11 rings and the incoming is 12.
by Friendly-Raspberry82
1 Comment
You’ll need to check your freehub and upgrade/switch out as required. The 12 speed requires ‘HG spline L2’. You existing one is likely to be HG. [https://bike.shimano.com/stories/article/a-guide-to-shimanos-12-speed-freehubs-and-compatibility.html](https://bike.shimano.com/stories/article/a-guide-to-shimanos-12-speed-freehubs-and-compatibility.html)