Shimano SLX SM-CRM75
Top PickWhat We Like
- Shift precision rivals Shimano’s XT range with no missed shifts reported.
- Highly rated by the mountain bike community for consistent performance.
- Direct mount simplicity
Worth Noting
- Tooth sizes limited to 30, 32, and 34T
- Material
- Aluminum
- Tooth Count
- 32T (also 30,34)
- Narrow-Wide Design
- Narrow-wide
- Bolt Circle Diameter
- Direct mount (Shimano Micro Spline)
Read the full review
The SLX SM-CRM75 uses the same dynamic chain engagement technology as Shimano’s XT rings, keeping the chain planted through rough climbs and descents. While XT uses a slightly lighter aluminum, the shift feel and retention are nearly indistinguishable in practice. The tooth range is limited to 30, 32, and 34T — riders needing steeper gearing for climbing or higher top speed will need to step up to XT’s wider options or consider aftermarket rings.
This ring is best suited for Shimano 12-speed MTB owners replacing a worn chainring or building a reliable trail bike. If you run a 32T already, it’s a direct upgrade in durability and precision. Riders who want larger than 34T or smaller than 30T will need to look elsewhere, though the SLX covers the most common gearing for trail and enduro riding.
Bottom line: If your gearing fits within the 30-34T range, this SLX ring delivers near-flawless performance without paying the XT premium. It’s the sensible upgrade for Shimano 12-speed trail bikes.