Shimano SLX SM-CRM75 12-Speed Chainring
When your ride is bound to be bumpy, the Shimano SLX SM-CRM75 Chainring features a special tooth profile that improves chain engagement and retention for smoother pedaling on rough trails.
- Dynamic Chain Engagement+ technology utilizes special MTB-specific gear tooth profile for exceptional chain engagement and retention
- Compatible with M7100-series Shimano SLX cranksets and others (not included) with a splined direct-mount attachment
- Exchangeable single/double chainring design means this chainring can be used in a 1x or 2x system
Imported.
View the Shimano SLX Product LineView all Shimano Bike Chainrings| Best Use | Mountain Biking |
|---|---|
| Chainring Mount | Direct Mount |
| Chainring Shape | Round |
| Bolt Circle Diameter | Not Applicable |
| Number of Teeth | 30T |
| Material(s) | Teeth: steel; body: glass fiber reinforced polymer (GFRP); arm: aluminum |
| Weight | Unavailable |
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Durable ring but silly construction
The ring itself is very durable and does the job. However, I too found that the security torque bolts worked themselves loose while on the trail. Of course I had no tool to tighten them on the trail but this can be fixed by adding threadlocker to each bolt. Then, it’s a solid ring. However, you can’t even find just the ring to replace a worn one without the spider so why this silly construction? It would be much better to replace this ring with a solid, narrow-wide, direct mount ring which will be lighter and problem free.
chainrings bolts or chainring need to be one piece
Had to purchase special t15 security torx tool to tighten chainring bolts almost dead going otb after chain dropped due to chainring wobbling because chain bolts loosened. Other than that the the teeth and direct mount is good just apply tread lock and not the blue one.