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Cog Details 10
(Water-rated to 1 ATM
turn-by-turn navigation — and highlight popular roads and trails along with high-traffic areas
Directional chain
GRX RD-RX820 Road Tires Cog Details 10With 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
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