Shimano BB-MT501 HollowTech II Bottom Bracket
| Brand | Shimano |
|---|---|
| Colour | Black |
With better sealing and rotation the Shimano Deore bottom bracket delivers high driving efficiency.
Technology
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. Moreover, HollowTech II crankset has a high-precision sealing in the bearing area to increase durability maintaining the excellent rotating performance for long periods.
24mm Diameter Axle And Bearings
Why choose the 24mm axle and bearings for the HollowTech II crankset?
The diameter of the Bottom Bracket axle and bearings was of primary importance for the development because the Bottom Bracket axle area is tied to such key elements as stiffness, strength, weight and rotating performance.
Outboard Bearing
For most frames with 68mm Bottom Bracket shells, HollowTech II with 24mm axle can set the bearing position outside of the frame to provide better weight distribution and more stability.
Features
- Set includes left and right hand cups, spacers, inner cover, and inner O-rings
- Sealed cups keep out dirt and water
- Maintenance free
- Compatible with 68mm and 73mm shell
- Durable anodised finish
- Easy installation
