This upgrade kit is for Kegel speed hack and Evolve GT 83mm speed hack. Complete your speed hack with some fresh bearings and the right size belts. You will receive a new set of drive bearings and two belts to upgrade your board.

This Kit Includes:

• Two Belts 201mm length 201-3M-15 Belt
• Two Drive Bearings

The belts are the normal industrial grade seen on many websites when you search (Gates 201-3M-15 Belt). They are a bit thinner than the special boosted ones, but quite a bit less expensive as well.