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

 

★ Double chainring (1): 42/29T; 5 bolt 94mm BCD, 7075AL.

 

★ Double chainring (2): 45/30T,42/29T,42/27T,40/27T,40/26T,38/26T, 36/22T, 4 bolt 104/64mm BCD.

 

★ Chainring bolt: KCNC Allen bolts 7075AL. 

 

★ BB:68/73(BSA)

 

★ Chainline: 48.5mm

 

★ Q-Factor: 164mm

 

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

 

★ High precision full CNC machined chainrings for smooth shifting.