\n\t\t\tShimano GRX RD-RX820 12 Speed Rear Derailleur For Double
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Features:\n\t\t
\n\t\t\t- \n\t\t\t\tSilent and secure rear shifting on rough terrain
\n\t\t\t- \n\t\t\t\tAdjustable chain stabilizer prevents chain slap and drops
\n\t\t\t- \n\t\t\t\tSmooth and reliable shifting on mixed surfaces
\n\t\t\t- \n\t\t\t\tON/OFF stabilizer switch matches terrain
\n\t\t\t- \n\t\t\t\tWide gear ratio compatible up to 11-36T
\n\t\t\t- \n\t\t\t\tFor use with double chainset
\n\t\t\t- \n\t\t\t\tCompatible with 12-speed Hyperglide+ chains
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\n\t\tEnhanced chain security and quieter, more stable shifting for gravel riding.
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\n\t\tThe RD-RX820 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. The Shimano GRX 12-speed rear derailleur also features an integrated chain stabilizer that delivers quieter shifting and more secure chain management during rough rides. And the chain tensioner has an ON/OFF switch for outings on smooth surfaces.
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Technical specifications:\n\t\t
\n\t\t\t- \n\t\t\t\tSpeeds: 12s
\n\t\t\t- \n\t\t\t\tShifting: Mechanical
\n\t\t\t- \n\t\t\t\tMax tooth: 36T
\n\t\t\t- \n\t\t\t\tWeight: 270g
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