Shimano SLX FC-M7120 1x Crankset: Precision-Engineered for Modern MTB Trails

Built for Speed & Control
This 12-speed mountain bike crankset redefines trail efficiency with Shimano’s Hollowtech II technology, delivering a 20% lighter frame than traditional designs while maintaining rigidity for aggressive climbs and descents. Ideal for cross-country racers and enduro riders seeking seamless gear transitions on mixed terrain.

Key Performance Features
– Direct Mount Chainring Compatibility: Fits 148/141mm Boost hubs (sold separately) for optimized wheel alignment
– 165mm Crankarm Balance: Provides responsive pedaling without sacrificing lateral stability
– 55mm Chainline Precision: Minimizes chain slap and maximizes power transfer on technical descents
– 9/16″ Pedal Spindle: Universal fit for SPD/SRAM clipless pedals

Innovative Construction
Forged hollow crank arms reduce rotational inertia by 15% compared to solid designs, enabling quicker acceleration out of corners. The asymmetrical spider design distributes chain tension evenly across all 12 speeds, reducing wear on the chainring teeth by up to 30%.

Compatibility Highlights
| Feature | Shimano SLX M7120 | Competitor Standard Cranks |
|————————-|————————-|—————————-|
| Weight (165mm) | 445g (crankset only) | ~580g |
| Boost Hub Support | 141/148mm | 110/126mm only |
| Chainring Mount Type | Direct Mount | Bolt Circle Design |
| Q-Factor Adjustability | Fixed 178mm | Often wider (180-190mm) |

Why Mountain Bikers Choose This
Perfect for riders upgrading from 2x systems to lightweight 1x setups without sacrificing durability. The direct mount chainring (sold separately) allows for future customization while maintaining Shimano’s legendary shifting accuracy in muddy or wet conditions.

Note: BB30/BB86 bottom bracket required separately. Compatible with Shimano Deore XT/XTR 12-speed derailleurs.