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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
Weight pair 330 g Pedal 115 g
0 for maximum freedom of movement
Silent and secure rear shifting on rough terrain
Spare Chainring Bolt
Zipp Vuka Carbon Evo 70 Argentite Silver The SHIMANO GRX 12-speed rear20mm inward roll and multi radius bend Decreased drag by starting airflow over the body sooner while keeping the arms and wrists in a comfortable, relaxed position Compatible with Vuka Clip, Vuka Aero and all 22. 2 systems Internal cable routing SRAM Model ID: HB VK EXTE A1 Attributes Primary Color Black Rise 70mm Routing Internal UCI Legal Yes Handlebar Material Carbon
