Shimano’s Alivio FC-M4050 crankset with 40/30/22t gearing and Hollowtech bottom bracket

     The new FC-M4050 chainset has also been revised for 650b and 29in wheels. It features Shimano's Dyna-Sys compact triple ratio 40-30-22t ring combination, which was debuted last year on Shimano's Deore group and was developed specifically for larger wheels. The new triple chainset is a fresh looking two-piece design that also uses Shimano's existing BB51 hollow tech bottom bracket, despite not being branded as a Hollowtech II component. An Octalink bottom bracket version is also available.

   The Alivio FC-M4050 MTB crankset for integrated bottom brackets offers a chainguard and Hyperdrive SG-X chainrings. The two-piece crank arm is made of aluminum, while the replaceable chainrings are made of steel. Thanks to the anti-rust process a long-lasting satisfaction is guaranteed. The FC-M4050 offers the MEGA-9 LITE drive. (Wide-range 9-speed sprocket cluster with close-ratio gearing.) 

Symbolic picture The image shows the crankset with another number of teeth.

Product Name: Shimano Alivio FC-M4050 Crank Set 3x9-speed 40-30-22

Manufacturer: Shimano

Manufacturer item code: EFCM4050CX002C | EFCM4050EX002C

Material: crank arm: aluminium

chainrings: steel

Crank length (mm): 170 | 175

Color: silver

Chainwheel, number of teeth: 40-30-22

Fitting for derailleur: Shimano/SRAM 3x9-speed

Axle profile: integrated axle

Bolt Circle (mm): 96/64

Type of chain: 9-speed HG

Chainline: 50 mm

Included in delivery: chain guard optionally selectable without bottom bracket cups