The SHIMANO GRX rear derailleur with SHIMANO SHADOW RD+ and a maximum 34T cog delivers a quiet riding experience and reliable, precise shifting over varied terrain. This derailleur features an adjustable chain stabilizer to prevent chain slap and drop. The on/off chain tensioner switch makes this derailleur ideal for riding on flat roads. The RD-RX810 is compatible with road cassettes and offers a total capacity of 40T.

• Silent and uninterrupted rear shifting on rough terrain
• Adjustable chain stabilizer prevents chain chatter and slippage
• SHIMANO SHADOW RD+
• Smooth and reliable shifting on varied terrain
• Switch the clutch ON or OFF depending on the terrain
• Switch the stabilizer ON or OFF depending on the terrain
• Gravel-tuned clutch tension
• Suitable for current DUAL CONTROL LEVER for racing bikes
• Max. difference front: 17T
• Smallest sprocket: max. 11T/min. 11T
• Largest sprocket: max. 34T/min. 30T
• Total capacity: 40T

• Model: RD-RX810
• Series: GRX 11-speed
• Color: Group color
• Average weight: 255 grams
• Compatible chain: LINKGLIDE, HG 11-speed
• Capacity L 40T
• B-axis_Hollow axle: Yes
• Cable adjuster: Yes
• Direct mounting (conventional): Yes
• Fluorine coated pivot bushings: 4
• Largest sprocket Max.: 34T
• Largest sprocket Min.: 30T
• Max. difference/front: 17T
• Derailleur wheel lower upper derailleur wheel: Yes
• Derailleur pulley recessed type derailleur pulley bolt: Yes
• Derailleur pulley teeth: 13T
• Derailleur pulley lower derailleur pulley: Yes
• Top-Normal suspension type SHIMANO SHADOW RD+: Yes
• Smallest sprocket Max.: 11T
• Smallest sprocket Min.: 11T
• Rear gears: 11