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minimizing the risk of punctures
Outstanding dependability and range increase make daily riding more enjoyable
Improved puncture protection thanks to the reinforced casing provided by the Michelin City Shield technology
Steel rings with engineering polymer spacers
turn-by-turn navigation — and highlight popular roads and trails along with high-traffic areas
GRX RD-RX820 Road Tires minimizing the risk of puncturesWith 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