GRX RD-RX820 Fork Dust Seals and Foam Rings Magic Zero: Automatically check and

Magic Zero: Automatically check and recalibrates your power meter to ensure it is always accurate

Pressure-relieving central cutout

Pair of K-Type disc brake pads without fins

Chain Ring MTB 22T 64 AL3 Blast Black 2x10 No Pin

Automotive-grade hardware

GRX RD-RX820 Fork Dust Seals and Foam Rings Magic Zero: Automatically check andWith an integrated chain stabilizer mechanism, the GRX rear 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 RX820 rear derailleur is compatible with MTB cassettes with a 42T low sprocket max. GRX 12 speed rear derailleur for double cranks Adjustable chain stabilizer prevents chain slapping and drops