Shimano XT RD-M8100 rear derailleur - for fast and precise shifting performance

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.

Guidelines for Replacing E-bike Components:

Before you replace components on your e-bike, please read through the guidelines for component replacement for CE-marked e-bikes/pedelecs with pedal assistance.

Specifications:

Series:

Deore XT M8100

Application:

Enduro, All Mountain, Cross Country

Gearing:

12-speed

Mount:

standard

Capacity:

35 tooth (short), 41 tooth (long)

Compatibility:

Shimano MTB 12-speed

Compatibility - Chains:

HG 12-speed

Technical Information:

Derailleur Pulleys:

13-tooth

Outer Cage Material:

aluminium

Inner Cage Material:

aluminium

Other Materials:

aluminium, stainless steel, steel, composite material (GFRP)

Compatibility:

MTB 1x12-speed:

Shifter:

SL-M9100, SL-M8100, SL-M7100, SL-M6100

Cassette:

• short / GS: 10-45 t: CS-M8100-12, CS-M9101-12, CS-M9100-12, CS-M7100-12
• long / SGS: 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

Features:

• 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

Technology:

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.

Models:

short:

Cage Length:

GS

Max. Largest Sprocket Teeth:

45-tooth

Min. Largest Sprocket Teeth:

45-tooth

Max. Smallest Sprocket Teeth:

10-tooth

Min. Smallest Sprocket Teeth:

10-tooth

Max. Chainring Difference:

0-tooth

Total Capacity:

35-tooth

Manufacturer Number:

I-RDM8100GS

long:

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

Manufacturer Number:

I-RDM8100SGS

Contents:

• 1 x Shimano XT RD-M8100 Shadow+ rear derailleur