Shimano GRX 1X11 Rear Derailleur Shelter & Sleep - Disc brake rotor size:

- Disc brake rotor size: 140 mm

Lever bracket cover conforms to the shape of the hand to reduce fatigue

•Swiveling 8" front wheels with reflective rims that can be locked into fixed position

•Zippered Right Thigh Pocket

breathable mesh that keeps your feet cool and comfortable

Shimano GRX 1X11 Rear Derailleur Shelter & Sleep - Disc brake rotor size:SHIMANO GRX REAR DERAILLEUR RD RX812 With an integrated chain stabilizer mechanism, the SHIMANO GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features an ON OFF switch for the chain tensioner. The RD RX812 rear derailleur is compatible with MTB cassettes with a 42T low sprocket max. FEATURES: For 1x drivetrains Adjustable chain stabilizer prevents chain