Shimano FH-RS770 freehub body

SHIMANO - Rear FREEHUB - CENTER LOCK - Disc Brake - 142x12 mm E-THRU Axle - 10/11-speed For E-THRU disc brake compatible bicycles, the RS770 FREEHUB blends good looks and high quality performance.


Features:

- Greater stability
- Higher rigidity
- Road E-THRU axle

Easy maintenance and installation:
- Simple handling and workability


Specifications:

- Average weight: 302
- Remarks: Can be used for 10-speed with an additional spacer. For disc brake/ CENTER LOCK mount
- Color 1 Hub shell: Black/Silver
- Brake type: CENTER LOCK disc brake
- Rear speeds: 11/10
- O.L.D. (mm): 142
- Spoke hole 28H: Yes
- Spoke hole 32H: Yes
- Spoke hole 36H: Yes
- Internal serration disc brake rotor lock ring Without: Yes
- Axle fixing method: 12 mm E-THRU
- Thru axle (length x inner diameter ; mm) 142 x 12: Yes
- Flange distance (mm): 55.7
- Offset (mm): 7.5
- P.C.D. left / right (mm): 44/45
- Flange diameter left / right (mm): 52.8/53.8
- Spline type HG spline L (ROAD 12/11-speed): Yes


Technology:

Cup & Cone Bearing:
- Shimano cup & cone bearings use angular contact to effectively displace lateral and vertical loads for smooth rotation and excellent durability. Plus, their design makes them easier to adjust and service.

E-thru:
- The tool-less type thru-axle skewer system optimizes rigidity and weight balance and enables easy operation with a reliable internal cam mechanism. The 15 mm thru-axle system is 15% stiffer torsionally and 25% stiffer in transverse shear than a traditional 9 mm quick release front axle system. High rigidity is secured while keeping the optimum weight balance. The E-THRU axle hub system minimizes the distortion of suspension while maintaining lightweight for riding around sharp corners at high speed.

Center Lock:
- The CENTER LOCK system makes an easy rotor installation possible with spline mount and a lock ring. The lock ring mounting system reduces the total working hours by shortening the amount of time of both installation and de-installation. In addition, the secure fixing by the spline mount enhances precision and rigidity while improving braking efficiency.