Shimano GRX RD-RX400 Rear Derailleur - 10-Speed Long Cage Black With Clutch dropper posts 100% quality-controlled and fully rebuildable

100% quality-controlled and fully rebuildable

and cornering ability

Comfort Guard insulation & integrated gaiter

Battery life: up to 14 days in 10-minute tracking mode Color Flame Red

Forms a lubricating film that prevents metal-to-metal contact and reduces operating temperatures

Shimano GRX RD-RX400 Rear Derailleur - 10-Speed Long Cage Black With Clutch dropper posts 100% quality-controlled and fully rebuildableGRX RD RX400 Rear DerailleurA Shadow RD+ chain stabilizer prevents chain slapping and drops The gravel tuned clutch tension helps to provide smooth and reliable mixed surface shifting Stabilizer can be turned on off to match terrain Compatible only with 10 speed ST RX400 ST 4700 ST4720 ST 4725 ST RS405 and SL 4700 shift levers Largest Cog 36 Color Black Rear Der Shifter Compatibility Shimano Road Rear Derailleur Mount Type 10x1 Standard Drivetrain