Specially-modified superior Kevlar®-reinforced 189mm-long and 3mm-wide back drive belt comes standard in XRAY T2009 Rubber-Spec Conversion Set 38T Pulley. This belt is quite thin and elastic as possible for an extremely effective transmission that significantly decreases friction helping to reduce battery draw. The belt is specifically hand ground on a special machine to make it since thin as you are able to without impacting lifespan.
To fully benefit from the benefits from these high-performance belts, be certain all transmission ball-bearings are definitely clean to cut back drag and friction.