MTB chainstay spacer

Spacer for Surly Krampus/Karate Monkey MTBs.+10-15-20mm for chainstay length. To install just loosen the Surly axle, pull back on the wheel(no need to take out the wheel) and slide in the chosen spacer, before tightening the axle push back forward on the wheel to center it if its needed. Brake calipers NEEDS to be adjusted accordingly for the spacer lenth.