Shimano Zee FC-M645 crankset

Visually and technically inspired by the Saint components, the Zee components offer an affordable yet equally robust entry point into Shimano’s FR and DH range

Shimano has developed a durable, stiff yet lightweight crankset specifically for an aggressive riding style; the Zee FCM640 crankset features a steel axle and steel pedal thread sleeves. By using a solid crank arm and a hollow axle, Shimano has achieved the perfect balance between stiffness and durability. Using Shimano’s proprietary forging technology, the developers were able to integrate a hollow bottom bracket shell, which ensures high stiffness and low weight, thereby guaranteeing a balanced ratio between these two characteristics.

Shimano Zee FC M645 Hollowtech II Crank Technical Specifications:

• Hollowtech II crank technology
• Reinforced connection between pedal and crank; the flanged threaded sleeve reinforces the pedal’s fit within the crank.
• Bore diameter: 104 mm
• Crank arm length: 170 mm
• Axle length: 13.7 cm
• Crank: forged aluminium
• Chainline: 46.8 mm
• Includes SMBB51 BSA 83 mm bottom bracket
• Weight without bottom bracket: 550 g

Herstellerinformation: SHIMANO INC., 3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan, www.shimano.com | EU contact: Shimano Europe BV, High Tech Campus 92, 5656 AG Eindhoven, The Netherlands, www.shimano.com