For serious racers selecting smart weight savings and optimized rotating weight, XRAY's optional ultra-lightweight 1st gear drive flange made out of 7075 T6 aluminum was strategically lightened to minimize rotating weight without having to sacrifice power or durability. Includes factory-pressed top-notch German 1-way bearing, hand-ground for optimum operating precision. The 1-way bearing is non-replaceable as soon as exhausted, so it should be regularly serviced, washed, and oiled often (we suggest making use of #309580 One-way Lube).
• Drive flange with one-way bearing • Ultra-lightweight design • Reduces rotating fat • High-quality German one-way bearing • Bearing manually hand-ground for maximum running precision • Swiss 7075 T6 aluminum • Fits NT1
