GR580 Rear Derailleur 12/11-spd
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RD-GR580C Rear Derailleur 12/11-spd
(Formerly named RD-M520c) Wide range rear derailleur ideal for gravel bikes. Compatible with Shimano 105 ST-5800 and GRX 600/810 road shifters
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Features:
• Overlength Cage • 12/11-speed • Shimano Road compatible • Chain stabilizer reduces chain bouncing on rough terrain • Aluminum cage, B-knuckle, B-bolt and outer link • Bearing-equipped composite pulleys • Weight: 269g |
