BMX Race Cassette Hubs
Win the race at the start with an Instant Engagement Rear Hub. We stock high-end cassette hubs with Disc Brake mounts and multiple axle options (10mm, 15mm, 20mm). Choose between lightweight pawl systems or silent sprag clutches (like Onyx) for zero drag. Use the guide below to match your frame dropouts and brake system.
BMX Race Cassette Hubs FAQBMX Race Cassette Hubs Range
BMX Race Cassette Hubs FAQ
What is a BMX Race Cassette Hub and what makes it special?
The Rear Hub contains the drivetrain mechanism. In BMX Racing, "Engagement" is everything. The faster the hub engages when you start pedaling, the faster you get out of the gate. Modern race hubs often feature Instant Engagement (zero delay) and mounts for Disc Brakes.
How is a Race Cassette Hub constructed?
- Driver
- The part that holds the cog. Usually made of aluminum or titanium. Standard in racing is the Shimano-compatible driver for slide-on cogs.
- Engagement System
- Pawls: Classic "clicking" sound. Reliable and light.
Sprag Clutch (e.g., Onyx): Silent and instant engagement. Slightly heavier but zero drag while coasting. - Disc Mount
- ISO 6-Bolt: The standard for mounting brake rotors in BMX.
Which Axle Standard do I need?
The rear hub must match your frame's dropouts exactly. Check your frame specs!
| Axle Type | Typical Frame Compatibility |
|---|---|
| 10mm (3/8") Bolt-In | Standard for most frames (Junior to Pro). Fits open dropouts. |
| 15mm Thru-Axle | Used by brands like Meybo (older models) or Redline. Requires closed dropouts. |
| 20mm Thru-Axle | The new standard for stiffness (e.g., Meybo HSX, Chase ACT). Requires specific dropouts and tensioners. |
What is "Instant Engagement"?
In a standard hub, there is a small gap (degrees of rotation) before the pawls catch. In a race start, this gap is lost time. Instant Engagement hubs (like Onyx) eliminate this gap completely – as soon as your foot moves, the wheel moves. This provides a massive advantage at the gate and out of corners.
What do the specifications mean?
| Specification | Explanation | Examples/Available |
|---|---|---|
| Engagement | How fast the hub catches. | Instant (Onyx), 120 Points (High), Standard |
| Axle | Diameter of the mounting hardware. | 10mm, 15mm, 20mm |
| Disc Mount | Interface for the brake rotor. | ISO 6-Bolt (Standard), Centerlock (Rare) |
| Hole Count | Spoke holes (must match rim). | 28H, 36H |
