Shimano GRX RD-RX825 12-Speed Derailleur 2023 Sizes: S (360 cm3)

Sizes: S (360 cm3)

Nothing holds you back from entering the All-Mountain thrills with the M 1900 Spline wheels

but is designed to play nice with front shifters

because when you are in the start gate

while the geometry features an ultra-low standover that makes it easy for your little ones to fit on and grow with the bike

Shimano GRX RD-RX825 12-Speed Derailleur 2023 Sizes: S (360 cm3)Where The Magic Happens The Shimano RX825 Rear Derailleur features Shimano's pioneering Shadow RD+ technology. With its convenient on off switch, Shadow RD+ makes removing the rear wheel easy when turned off. When on, the drivetrain is under additional tension that makes for a quieter ride and more precise shifting. Like on Shimano's road 12 speed Di2 systems, the rear derailleur is also the communication hub of the drivetrain, communicating