★ Crank Arm length: 165/167.5/170/172.5/175/177.5mm, 7075AL.

 

★ Chainring: 44/32/22T; 4 bolt 104/64mm BCD, 7075AL. 

 

★ BB:68/73(BSA)

 

★ Chainring bolt: KCNC Allen bolts 7075AL.

 

★ Chainring: 40/30/20T; 4 bolt 94/58 BCD, 7075 AL

 

★ Chainline: 48.5mm

 

★ Q-Factor: 164mm

 

★ Bearing: Full stainless steel, better anti-rusting&durability.

 

★ High precision full CNC machined chainrings for smooth shifting.