Shimano GRX RD-RX812 Rear Derailleur - 11-Speed, Long Cage, Black, With Clutch, For 1x, 42t Low Sprocket Max 2016 The Specialized Aethos Comp Rival

The Specialized Aethos Comp Rival eTap AXS is a featherweight carbon road bike designed for pure riding pleasure

The SRAM XO1 Eagle drivetrain ensures smooth and precise shifting

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

but full-length droppers that fit in the 30

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 The Specialized Aethos Comp RivalThe 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.