Material: 7005 aluminum alloy (crank)+7075 aluminum alloy (disc/shaft center)
Color: Silver
Compatible: 8-12speed
Crank length: 165mm (498g)/170mm (517g)/175mm (529g)
Gear ratio: 40T(95g)42T(100g)44T(107g)46T(110g)48T(115g)
Bottom support: BSA (68-73mm) BB86 (86mm) about 100g
Q factor: 148mm
K factor: 91.5mm
Advantages: The crank adopts full CNC process and LOGO carving process, which reduces the weight and improves the strength
Features: High performance power transmission light weight dental disc