The RTT-72CK-4B features a BB24 forged crank axle made from high-quality CrMo steel. This forged construction offers superior stiffness and durability, ensuring that your crankset will stand the test of time. The axle also ensures smooth and responsive gear changes, giving you the confidence to tackle any riding challenge.

With a chain line of 44mm and a Bolt Circle Diameter (BCD) of 41mm, the RTT-72CK-4B is compatible with a wide range of chainring sizes. This flexibility allows you to customize your setup to fit your specific riding style and gear preferences.

Designed for 2x11s speed configurations, the RTT-72CK-4B provides a gearing option that can handle a variety of road cycling scenarios. Whether you're ascending steep hills or descending at high speeds, this crankset will ensure seamless gear shifting and optimal power delivery.

Parametar proizvoda

Crank: 165/170/172.5/175mm(Forged A7050-T6 CNC)

Chainring: 30/46T,34/50T.36/52T,39/53T(A17075-T6 CNC)

Axle: BB24 Forged CrMo

Chain line: 44mm

BCD: 41 mm

Speed: 2x11s

Q-Factor: 160mm

Weight: 760g(170,34/50T)