Dérailleur Arrière SHIMANO GRX RX812 11V Pneu Rigide while the numerous traction sections

while the numerous traction sections in the centre of the tread allow for optimal traction and excellent acceleration

The 40 mm high profile ensures them a exceptional versatility

60" and an internal rim width of 22 to 35 mm

with its knobs lightweight which preserve the performance

Dérailleur Arrière SHIMANO GRX RX812 11V Pneu Rigide while the numerous traction sectionsThe SHIMANO GRX RX812 11 Speed Rear Derailleur was developed to meet the growing popularity of Cyclo cross and Gravel riding, and the significant demands they place on derailleurs originally designed for road use. It features a chain stabiliser with Shadow RD+ technology (derived from mountain biking) which prevents chain drops. A switch is placed at the upper pulley and when activated, it holds the pivot more firmly and reduces vibrations. This model