Блок передних звезд Shimano ACERA FC-MT210-3 175MM 3x9-speed-44X32X22T EFCMT2103EX422CL
Chain ring combination (OPTIONAL): 40-30-22T OR 44-32-22T
Q-Factor: 176mm
Compatible with 9-speed chain
BCD: Riveted, chainrings not replacable
Chain line: 50mm
With chainguard
Compatible with HollowTech II bottom bracket
Bottom bracket is not included (sold separately)
Crank Arm length: 175mm
Crank arm material: Aluminum, anodized
Chainring material: Steel
Includes crank arm fixing bolts
Weight: ~ 1.2 kg
HOLLOWTECH II - Providing the best balance of stiffness, strength, weight and rotating performance The concept of HOLLOWTECH II technology is focused on producing a superior crankset which will maximize a rider’s power transfer. The rigidity of the crankset ensures pedaling efficiency while its weight, a key element of the crankset, you want light, aids in cycling longer distances over which the rider needs to pedal more. Naturally, SHIMANO strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. HOLLOWTECH technology is an ultra-lightweight hollow crankarm created by SHIMANO with the company’s own proprietary forging technology that also maintains rigidity. The addition of HOLLOWTECH II technology integrates the bottom bracket axle with the right crankarm for more stiffness and a weight savings to achieve a high-dimensional balance. Its outboard bottom bracket (sold separately) bearing system provides better weight distribution and more pedaling stability, allowing for more efficient power transfer. The HOLLOWTECH II crankset has been developed by pursuing the optimum balance of stiffness and rotating performance in a lightweight and beautiful crankset design. Moreover, HOLLOWTECH II crankset has a high-precision sealing in the bearing area to increase durability maintaining the excellent rotating performance for long periods.