The Shimano Alfine is a top-tier component group for sporty and elegant cycling. Premium quality, style, adaptability, and effortless operation are the hallmarks of the Shimano Alfine. The clean design and wide gear range of this eight-speed hub gear system provide the bike with real momentum. The Shimano Alfine FC-S501 comes with the SM-BB4600 bottom bracket.

2-Piece Design: The integration of the crank arm and bottom bracket increases stiffness while reducing weight. The axle bearings are spaced further apart, enhancing rigidity and effectively transferring the rider's power. Precision bearings ensure low maintenance and simplified assembly.

Intended Use: City
Details:

• Crank arms anodized and painted, chainring anodized
• Chain guard (outer) made of anodized aluminum
• Diameter of the chain guard: 190 mm (42 teeth)
• Not compatible with chain cases

Material Specifications: Aluminum

Delivery Contents:

• 1 x Crankset Shimano Alfine FC-S501 (39 teeth)
• 1 x Chain guard Shimano
• 1 x Bottom bracket Shimano SM-BB4600
• 1 x Crank

Chainrings:

• Number of chainrings: 1 chainring
• Gear ratio: 39 teeth

Crank:

• Rear derailleur compatibility: 8-speed
• Design: 5-arm
• Axle diameter: 24 mm
• Bolt circle diameter: 130 mm
• Bolt circle type: Standard
• Chainline: 42.8 mm
• Crank arm length: 170 mm

Chain Guard:

• Chain guard ring.