Shimano ZEE FC-M640 10 Speed 170mm No Chainring 104 BCD Black

Shimano ZEE FC-M640 10 Speed 170mm No Chainring 104 BCD Black Reference Number: 3N74V9

Upgrade your mountain biking setup with the Shimano ZEE FC-M640 Crankset, a high-performance, durable component engineered for aggressive trail riding and demanding downhill adventures. Designed with precision and innovation, this crankset delivers exceptional strength, stiffness, and reliability to handle rugged terrains and high-impact riding.

Materials & Engineering

Constructed from thick wall aluminum, the Shimano ZEE FC-M640 crankset offers enhanced durability and resistance against impacts and abrasion. Its reinforced steel axle provides 30% greater stiffness compared to standard Trail crank options, ensuring efficient power transfer and responsive handling on steep ascents and technical descents. The crank arm design features Shimano's Hollowtech II spindle interface, promoting a lightweight yet robust build suited for intense mountain biking.

Performance & Components

Designed for 10-speed drivetrains, this single 36-tooth chainring offers optimal gear ratio for aggressive trail riding and downhill performance. The crankset's 104mm BCD (Bolt Circle Diameter) accommodates most aftermarket and OEM chainrings, giving you versatile customization options. Steel pedal inserts enhance durability and grip, providing reliable pedal engagement during rough terrain sessions. The crank length measures 170mm, balancing leverage and clearance.

Technology & Compatibility

Includes the SM-BB52 bottom bracket with 68/73mm shell width compatibility, ensuring seamless installation and optimal spindle alignment. The crankset's 9/16" pedal spindle fits most popular pedals, making it a versatile choice for mountain bikers seeking reliable component compatibility. The design adheres to English threading standards, making it suitable for a wide range of mountain bike frames.

Style & Use Case

Finished in sleek black, the Shimano ZEE FC-M640 crankset combines rugged aesthetics with high-performance engineering. Its aggressive look complements downhill, enduro, and trail bikes, making it an ideal upgrade for riders demanding robustness and performance from their drivetrain. Whether tackling steep technical descents, technical climbs, or sprinting through rough terrain, this crankset ensures you have the power and control needed for peak performance.

Innovative Features

- Thick wall aluminum construction for increased strength

- Reinforced steel axle for enhanced stiffness and durability

- Steel pedal inserts for long-lasting grip and pedal stability

- Compatible with 10-speed Shimano drivetrain systems

- Includes durable SM-BB52 bottom bracket for reliable installation

Upgrade your mountain bike with the Shimano ZEE FC-M640 Crankset and experience uncompromising power, durability, and style on every trail. Perfect for serious riders looking for a high-performance component that withstands the toughest rides.

• Optimized for mountain biking, the Shimano ZEE FC-M640 Crankset features a durable thick-wall aluminum construction that ensures longevity and precise power transfer in rugged terrain.
• Equipped with reinforced steel axle boasting 30% higher stiffness than Trail models, this crankset delivers enhanced responsiveness and control on demanding trails and technical climbs.
• Designed with a 36T single chainring and 10-speed compatibility, the ZEE FC-M640 offers seamless shifting performance, optimized for aggressive riding styles and downhill riding applications.
• Its sleek black finish and compact 170mm crank arm length provide a stylish, aggressive look, while the Shimano Hollowtech II spindle interface ensures a lightweight yet sturdy connection, ideal for downhill and enduro riding.
• Includes the durable SM-BB52 bottom bracket, making installation straightforward and providing reliable performance in muddy, wet, and challenging riding conditions.

Item Specifications Color Black Rings 36 BB/Frame Interface English Number of Chainrings Single BB Shell Width (mm) 68 BB Shell Width (mm) 73 Crank Length (mm) 170 Crank Intended Use Mountain Drivetrain Speeds 10 Weight 906 Pedal Spindle 9/16" BB Included Yes Spindle Interface Type Shimano Hollowtech II Chainring BCD 104 Defined Color Black