Crank length



165 mm

170 mm

172.5 mm

175 mm

size chainring inner



34-teeth

36-teeth

39-teeth

42-teeth

44-teeth

size outer chainring



46-teeth

50-teeth

52-teeth

53-teeth

54-teeth

54-teeth aero

55-teeth aero

58-teeth aero

56-teeth aero

Chainring ratio + crank length



Oval - Q52/36 - 170 mm

Oval - Q52/36 - 172.5 mm

Oval - Q50/34 - 172.5 mm

Round - R52/36 - 170 mm

Round - R52/36 - 172.5 mm

Round - R50/34 - 170 mm

Round - R50/34 - 172.5 mm

Power meter type



2INpower - Double-sided power measurement

Double-sided power measurement

INpower - Single-sided power measurement