SHIMANO GRX Di2 RD-RX817 11-speed rear derailleur Handlebar Bags The cover is wrapped in

The cover is wrapped in soft microfiber leather

But it can do much more

REFLECTIVE & ADJUSTABLE STRAPS:

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Ergonomic design

SHIMANO GRX Di2 RD-RX817 11-speed rear derailleur Handlebar Bags The cover is wrapped inFor 1x11 fold Adjustable chain stabilizer prevents the chain from jumping out Low noise and smooth running shifting system for uneven terrain Spring tension adapted to Gravel Group: GRX Series: RX810 Model: RD RX817 Technology: Top Normal Rear switching stages: 11 fold Rec. Chain: HG EV and HG X 11 speed Total capacity: 31 teeth Max. Difference in front: Max. largest sprocket: 42 teeth Min. largest sprocket: 40 teeth Max. smallest sprocket: 11 teeth