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SHIMANO XTR RD-M9100 GS | SGS 12-speed rear derailleur-mid-length | long

187.90€   RRP 264.95€   (29.08% Saved)

Prices incl. VAT plus shipping costs

  • 4967-001
  • I-RDM9100GS
  • 4524667880240


RACE PERFORMANCE! The XTR groupset is the top end of the SHIMANO MTB portfolio. These... more


The XTR groupset is the top end of the SHIMANO MTB portfolio. These high-performance components contain everything Shimano has to offer in terms of technology and know-how - it doesn't get any better than this! Optimised for MTB racing, they shine with low weight and best performance. The best racers in the world rely on these parts.

The SHIMANO XTR RD-M9100 rear derailleur is exclusively for use on MTBs with 1x12-speed drivetrains and the 10-45T or 10-51T cassette and thus offers a huge gear ratio range. It is characterised by lightning-fast and absolutely precise shifting processes. A 13-tooth guide pulley, a damper and an additional stop on the swingarm counteract drive noise and provide a good portion of comfort. The lower preload and chain tension in the lower gears also contribute to this. The SHADOW RD PLUS technology effectively prevents the chain from slipping and jumping off.

The high-end rear derailleur is available with a long cage (SGS) for the 10-51T cassette and with a short cage (GS) for the 10-45T cassette. With 28mm more ground clearance compared to the SGS, the GS version is particularly suitable for an aggressive riding style. However, both versions are characterised by a flat construction. This reduces the risk of getting caught on stones, trees or similar things in the terrain.

A big extra of the XTR components is the low weight and the high-quality workmanship. The M9100 rear derailleur weighs only approx. 237 g in the GS version. Details such as flour-coated joint bushings and rear derailleur rollers with sealed industrial bearings guarantee, among other things, a high life expectancy.


  • Racing optimised rear derailleur
  • Long or short cage
  • For 1x12-speed drives
  • Low-noise drive
  • additional stop on the rear derailleur swingarm
  • 13Z rear derailleur pulleys with sealed industrial bearings
  • Approx. 237g (GS)
  • 8 Flour-coated pivot bushings
  • Slim design for increased safety


A stabiliser in the rear derailleur effectively prevents the chain from slamming off-road. This improves chain guidance and reduces the risk of the chain jumping off. In addition, the technology ensures less noise in the drive.

Note: should you have any questions regarding compatibility or availability, do not hesitate to contact our customer service.

Manufacturer: Shimano
Weight: approx. 237 g Manufacturer's specification
Item: SHIMANO XTR RD-M9100 GS | SGS 12-speed rear derailleur-mid-length | long
Scope of delivery: 1 x RD-M9100 derailleur
Colour: Black/Anthracite
Maker's ref. no.: I-RDM9100GS | I-RDM9100SGS
Field of application: MTB
Mounting: Direct mounting
Switching steps: 12-speed
Functionality: Mechanic
EAN: 4524667880240 | 4524667880257
Total capacity: GS - 35 teeth/SGS - 41 teeth
Max. largest pinion: GS - 45 teeth/SGS - 51 teeth
Min. smallest pinion: 10 teeth
Cage length rear derailleur: Mid-long | Long
Recommended chain: CN-M9100
Stabiliser (preload): SHIMANO SHADOW RD+
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