NEW Shimano ZEE FC-M640 MTB Crankset – Durable 170mm Arm Length
$38.80
Description
Shimano ZEE FC-M645/M640 Crank & Bottom Bracket Set – Built for Aggressive Trail Riding
Engineered for mountain bikers who demand durability and precision, the Shimano ZEE crankset delivers exceptional stiffness and power transfer. Its thick-walled aluminum construction paired with a reinforced steel axle offers 30% more rigidity than standard trail cranks – giving you confident pedal strokes on technical descents and steep climbs.
Key Features:
– Hollowtech II Spindle Design: Lightweight yet incredibly strong for efficient power delivery
– 36T Single Chainring Setup: Optimized for 10-speed systems with 104mm BCD compatibility
– Included SM-BB52 Bottom Bracket: Fits both 68mm and 73mm shell widths (English threaded)
– 9/16″ Steel Pedal Inserts: Withstands heavy impacts and prevents thread damage
– 170mm Crank Arm Length: Ideal balance of leverage and ground clearance
Why Riders Choose ZEE Over Competitors:
| Feature | Shimano ZEE | Standard Trail Cranks |
|---|---|---|
| Axle Stiffness | 30% More Rigid | Baseline Performance |
| Construction | Thick Aluminum + Steel Axle | Thin-Walled Designs |
| Included BB | SM-BB52 ($$ value) | Often Sold Separately |
Perfect for enduro riders and aggressive trail cyclists seeking bombproof components. The matte black finish resists scratches while maintaining a sleek look. At just 906g, it’s a lightweight upgrade that won’t sacrifice strength when you’re pushing through rock gardens or sprinting out of corners.
Compatible with 10-speed mountain drivetrains. Includes bottom bracket for quick installation.
