The Shimano GRX Di2 RD-RX825 rear derailleur delivers precision shifting for gravel bikes with its integrated chain stabiliser, keeping your drivetrain quiet and reliable on rough terrain.
Toggle the ON/OFF switch to deactivate the stabiliser when you hit smooth asphalt. Built with cold-forged aluminium for lightweight durability, this 12-speed Di2 derailleur handles sprockets up to 36 teeth, conquering steep climbs and technical descents with ease. Compatible with 12-speed E-tube Di2 systems and HG Plus chains, it's engineered for the demands of gravel cycling.
Features
- Silent and secure rear shifting on rough terrain
- Adjustable chain stabilizer prevents chain slap and drops
- SHIMANO SHADOW RD+
- Smooth and reliable shifting on mixed surfaces
- ON/OFF stabilizer switch matches terrain
- Compact design includes an integrated wireless unit, charger, and switch
- LED status indicator
- Battery indicator
- Pairing
- Adjust mode, etc.
Specification
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Use: Gravel, Cyclocross
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Group: GRX Di2 RX825
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Model: RD-RX825
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Mount: Direct attachment (Conventional)
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Technology: Shadow RD+
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Gear front: 2-speed
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Gear rear: 12-speed
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Compatible Chain: 12-speed HG
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Max. teeth large sprocket: 36T
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Min. teeth large sprocket: 34T
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Max. teeth small sprocket: 11T
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Min. teeth small sprocket: 11T
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Max. Front Difference: 17T
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Total Capacity: 40T
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Compatible electric wire: EW-SD300
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Firmware update by E-tube Project: Yes
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E-tube port (pcs): 1
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E-tube connector (pcs): 0
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Di2 Wireless-Chip: Yes
Material
Colour
Weight
Contents
- 1 x Shimano GRX Di2 2x12-speed RD-RX825 Rear Derailleur
