Shimano XT RD-M8100 12-SPEED Shadow Plus Rear Derailleur Long (51T Max)


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  • The Shimano XT RD-M8100 rear derailleur with 13-tooth sprocket and rubber damper provides smooth, comfortable shifting and greatly improves chain retention in all imaginable conditions. It delivers precise gear changes over a wide range of ratios. Benefit from the advantages of the RD-M8100 rear derailleur if you ride a 1x12-speed system with 10-51 or 10-45 cassette.


    Series: Deore XT M8100
    Application: Enduro, All Mountain, Cross Country
    Gearing: 12-speed
    Mount: Standard
    Capacity: 41 tooth
    Compatibility: Shimano MTB 12-speed
    Compatibility - Chains: HG 12-speed


    Derailleur Pulleys: 13-tooth
    Outer Cage Material: Aluminium
    Inner Cage Material: Aluminium
    Other Materials: Aluminium, stainless steel, steel, composite material (GFRP)
    Compatibility: MTB 1 X 12 Speed
    Shifter: SL-M9100, SL-M8100, SL-M7100, SL-M6100
    Cassette: 10-51 t: CS-M8100-12, CS-M9101-12, CS-M9100-12, CS-M7100-12, CS-M6100-12
    Chain: CN-M8100, CN-M9100, CN-M7100, CN-M6100
    E-Bike: EP8 EP801, EP8 EP800 for MTB / Touring, STEPS E8080


    - fast and precise shifting performance optimised for each trail
    - fast, recoil free shifting
    - lower rear derailleur and chain tension in small gears
    - new bump stopper
    - larger derailleur pulleys
    - stable drivetrain on rough terrain
    - low profiled with Shadow RD+
    - painted cage plates
    - 4 or 7 joint bushings, fluorine-coated
    - derailleur pulley bearings sealed


    Shadow RD+
    Shadow Plus rear derailleurs are just as low-profile as Shimano's Shadow rear derailleurs. In addition, a stabilizer with on/off switch is used to reduce chain slap and thus counteract chain drop. At the same time, this results in a quieter drive. Weight is also saved compared to other chain restraint devices.


    Cage Length: SGS
    Max. Largest Sprocket Teeth: 51-tooth
    Min. Largest Sprocket Teeth: 51-tooth
    Max. Smallest Sprocket Teeth: 10-tooth
    Min. Smallest Sprocket Teeth: 10-tooth
    Max. Chainring Difference: 0-tooth
    Total Capacity: 41-tooth

    Weight: 284 g
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