Product Details
SM-BB80 SAINT - Bottom Bracket - Threaded - HOLLOWTECH II - 68/73/83 mm shell width
The SAINT bottom bracket receives a matching gold anodization and is compatible with threaded 68, 73, and 83mm frames.
Technologies
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 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 & rotating performance in a lightweight and beautiful crankset design.
High Precision Sealing
Moreover, HOLLOWTECH II crankset has a high-precision sealing in the bearing area to increase durability maintaining the excellent rotating performance for long periods.
Specicications
Model No. SM-BB80 Series SAINT M820 Series Average weight 95g (68/73 mm), 96g (83 mm) Remarks Gold color for SAINT Threaded BB shell width 73mm Yes Threaded BB shell width 83mm Yes HOLLOWTECH II BB Threaded BB type Yes Threaded BB shell width 68mm Yes
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