XRAY has released Low Friction Kevlar Drive Belt Rear 3x189mm under Belt / Belt Tensioner category
Optional specially-modified high-performance Kevlar®-reinforced 189mm-long, 3mm-wide back drive gear.
This belt is incredibly slim and elastic as you can for an exceptionally effective transmission that dramatically decreases friction and increases performance.
to fully use the advantages of these superior belts, verify all transmission ball-bearings are neat and properly lubricated to reduce drag and friction.