Chainring Adapter 1

Product Description

This machined aluminum adapter will allow you to mount any of our chainrings or chainring adapter to our 206 mm cartridge bottom bracket or a 5/8" shaft with a 3/16" key way, 5 bolt pattern diameter is 2.63 inches.

Product Reviews

Write Review

needed a little mod

Posted by Unknown on 11 20 2017

I bought this for a 226mm bracket and found mine to have a slight difference in OD of the main steel shaft and where it changes to aluminum and enters the bearings. In order to seat the adapter in close enough to align my chain I used a slightly larger drill bit to bore out the one side. Aside from that it looks and works great. The threads aren't the tightest so use some blue loctite and you're all good. Excellent product.
ChainRing Adapter 1

Posted by Dave O on 05 30 2017

ChainRing Adpater 1 from SBP was better than I expected. Finish was very smooth and it fit on the 5/8" jack-shaft perfectly. Kit even included keyway bar, set screw and allen wrench for set screw. I would purchase again from SPB.