SHIMANO BB PRESS FIT ISM-BB71-41B ROAD ISMBB7141B ROAD
Description
Shimano SM-BB71-41B Hollowtech II Pressfit 41 x 86.5mm Bottom Bracket
Shimano manufactures a wide range of different cranksets and matching bottom brackets so that the optimum system will always be available for each kind of bicycle and riding style.
Press-Fit BB use 24 mm axle and bearings, because 24 mm diameter axle and bearings offers the best balance of rotating performance, stiffness, strength, sealing, weight, for press-Fit type as well.
Product features - Shimano SM-BB71-41B
Use: Road
Model: SM-BB71-41B
BB-Type: Press Fit (41x24mm)
Press-Fit BB shell width: 86.5mm
Shell diameter: 41mm
Compatibility
Ultegra FC-6700 / FC-6700 G / FC-6750 / FC-6750G / FC-6703 / FC-6703G
105 FC-5700 / FC-5750 / FC-5703
Tiagra FC-4600 / FC-4650 / FC-4603
Sora FC-3550 / FC-3503
FC-CX50
FC-R603 / FC-R563 / FC-R460 / FC-R350
Material : Resin
Weight : 71g
HOLLOWTECH II Technology
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 bearing system provides better weight distribution and more pedaling stability, allowing for more efficient power transfer
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