Brand: EVOSID
Material: 7005 aluminum alloy (crank)+7075 aluminum alloy (disc/shaft center)
Color: black/silver
Compatible: 8-12speed
Crank length: 165mm (about 498g)/170mm (about 517g)/175mm (about 529g)
Gear ratio: 50-34T(about 180g)/52-36T(about 169g)/53-39T(about 169g)
Bottom support: BSA (68-73mm) about 100g
Q factor: 148mm
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