Shimano SM-BB72-41B Hollowtech II Press Fit Bottom Bracket
Product features
- Use: Road
- Model: SM-BB72-41B
- 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-RS500
- FC-CX50
- FC-R603 / FC-R563 / FC-R460 / FC-R350
Material
- Resin
Weight
- 69g
Scope of delivery
- 1 x Shimano Hollowtech II Press Fit Bottom Bracket SM-BB72-41B
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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Bought to replace the original factory fitted part in my carbon road bike that had covered more than 5000 km. Fitted easily and runs very smoothly as expected from Shimano. Price and service from Bike Discount are very good.