Shimano GRX RD-RX812 Rear Derailleur - 11-Speed, Long Cage, Black, With Clutch, For 1x, 42t Low Sprocket Max 2016 Ideal for both road and

Ideal for both road and mountain biking

5-inch DT Swiss wheels roll with maximum speed and efficiency

the GRX FC-RX600 crankset delivers reliable performance in challenging conditions

Crafted around a FACT 11r carbon frame

it offers exactly what modern race bikes need—no more

Shimano GRX RD-RX812 Rear Derailleur - 11-Speed, Long Cage, Black, With Clutch, For 1x, 42t Low Sprocket Max 2016 Ideal for both road andThe Shimano GRX 11 speed rear derailleur has an integrated chain stabilizer mechanism, that provides a quieter experience, shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features an ON OFF switch for the chain tensioner. The Shimano Shadow RD+ adjustable chain stabilizer provides silent and uninterrupted rear shifting on rough terrain.