Shimano HB-RS770 Front Hub - 36h - 100 x 12 mm
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Product Information
Full details
The Shimano HB-RS770 front hub is designed for disc-equipped road and gravel enthusiasts looking for a reliable, high-performance foundation for their wheelset. Engineered with the industry-standard Centre-Lock disc system and a 100 x 12 mm thru-axle interface, it offers excellent stiffness and braking consistency. While it provides exceptional durability, users should note that this specific version requires a 36-hole rim configuration, which may limit rim choices compared to standard 24 or 28-hole models.
All features
| Model Part Number | HB-RS770 |
|---|---|
| Brand | Shimano |
Extended Product Information
FAQs
Does this hub come with a thru-axle included?
No, the thru-axle is typically provided by the frame or fork manufacturer, not the hub itself.
Can I use 6-bolt rotors with this hub?
Yes, but you will need a Centre-Lock to 6-bolt adapter.
What is the weight of this hub?
While exact weights vary, this hub is designed for durability over ultra-lightweight racing performance.
Is this suitable for mountain biking?
It is optimized for road and gravel; check your fork spacing as most modern MTBs use Boost (110 mm) spacing.
How do I determine if this hub fits my rim?
Ensure your rim is drilled for 36 spokes; otherwise, the spoke holes will not align.
Troubleshooting
Brake rotor feels loose or vibrates
Check that the Centre-Lock lockring is tightened to the correct torque using a cassette tool.
Hub feels gritty when spinning
The cup-and-cone bearings may need cleaning and fresh grease, or a minor tension adjustment.
Pros and Cons
Pros
- Excellent braking performance with Centre-Lock compatibility
- High structural stiffness from the 12 mm thru-axle
- Superior protection against debris with advanced sealing
- Reliable, long-lasting bearing system
Cons
- 36-hole configuration limits rim compatibility
- Heavier than lower-spoke-count performance hubs
- Requires specific tools for Centre-Lock rotor installation
Setup, Compatibility & Care
To install the HB-RS770, ensure your fork is compatible with the 12 x 100 mm thru-axle standard. When installing the disc rotor, use a standard cassette lockring tool to tighten the Centre-Lock ring to the manufacturer's specified torque.
Maintenance Tips:
- Regularly check the thru-axle tension to ensure it is tightened to the recommended spec provided by your fork manufacturer.
- Avoid using high-pressure water sprayers directly on the hub flanges to protect the integrity of the internal seals.
- Periodically inspect for any lateral play in the hub; if detected, the cup-and-cone bearing adjustment can be serviced to restore factory-smooth rotation.