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Product features
Shimano XTR
Designed to meet the highest level of competitive mountain bike racing needs, with second to none performance and experience, Shimano XTR M9100 brings lightweight, high-end versatility to XC, enduro, and marathon racing.
Shadow RD+
Shimano's Shadow RD+ technology uses an adjustable rear derailleur clutch to reduce chain slap over rough terrain. This simple chain drop solution is lighter and more efficient than roller bearing chain management devices.
| Manufacturer part # | IRDM9100GS | IRDM9100SGS |
|---|---|---|
| Cage | Short cage | Long cage |
| Speed | 12 | 12 |
| Largest cog | 45t | 51t |