Jump to content

Cannondale FS-i conversion from 1x11 to 2x10


Recommended Posts


I need some help with a set up for a Cannondale FS-i Carbon Factory Racing 29er (Ai)
The bike has a 1x11 set up and I wish to change to a 2x10 set up. I have the rear mech & shifters but would like to know what parts & part numbers are needed from Cannondale?
i.e. front mech mounting plate and type of front mech (down swing / side swing)
Also which part for the crank spider.... (the chainrings are Truvativ x-Glide 39T 10spd 120 BCD & 26T)
P.S. I also have a 10 speed cassette for the rear wheel & freehub body
Thank you

Link to comment
Share on other sites

  • 2 weeks later...
  • Administrators

Hi there,

1. You probably need the down swing (or high clamp) rear derailleur. Explanation here:


2. Then you need the KP350 front mech adaptor (picture below). 

3. The freehub will accommodate 10s cassette, but most likely you need a spacer for that.

4. As for the crankset, I'm not sure, whether you can simply swap the chainrings, or you need to buy a whole 2x, Ai specific cranks.


Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...