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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4
Ideal for routine maintenance or part replacement
Derailleur Model
NOT for use on Bicycle chains
progressive air spring balances traction with the right amount of support and is fully adjustable for rider weight
This mount ensures optimal positioning and stability of the front derailleur
Shimano GRX RD-RX820 Rear Derailleur - 12-Speed, Direct Mount, One Spec, Shadow Plus Design, 36t Max Low Bags Ideal for routine maintenance orThe Shimano RD RX820 rear derailleur is compatible with 11 34t and 11 36t 12 speed cassettes, providing a wide gear range so you can spin a comfortable cadence no matter the terrain type. This rear derailleur also features an integrated chain stabilizer that delivers quieter shifting and more secure chain management during rough rides. The chain tensioner has an ON OFF switch for outings on smooth surfaces. Silent and secure rear shifting on rough