Item number: CS20.
The sprockets are made up of two sections of 4 and 3 sprockets connected by an anodized CNC aluminum spider which gives the entire sprocket pack a remarkable lightness which is completed by the remaining single gears.
Sprockets compatible Shimano and Sram 10 speed: 11-13-15-17-21-24-28-32-36-42 (446 g)