Version 2019: Qu-ax Q-Axle & round frame.
The Q-Axle disc-brake hub are the successor of the QX disc-braked ISIS hub. The ISIS axle has here been replaced by a technique that has been used in the cycle industry since 2002: The axle has a 24mm diameter instead of the ISIS-typical 22mm and is more hollow which makes it lighter (the bigger diameter allows a thinner wall). The cranks are no longer tightened as much on the axle as possible - but precisely positioned by an alloy cap and then fixed by tightening 2 allen-key-screws on the crank. The crank-connection has less wear and is more resistant to frequent assembly/dissassembly. Also, just like from tapersquare to ISIS, the connection-surface that transfers the pedaling-power is bigger.
Thanks to the more hollow-drilled axle, already the hub is more than 130g lighter than its ISIS-predecessor. It also makes the axle stiffer. As the bearings still keep the same outer-diameter, the hubs are compatible with all ISIS-ready-frames.
- Wheel size: 507mm (24")
- Color: Black
- Frame: Qu-ax CrMo Muniframe with brake bosses for Magura brakes
- Saddle: Qu-ax seat with handle
- Seat post: 25.4 mm Seat post, aluminum, reinforced
- Seat clamp: 2 bolts clamp
- Tire: 75-507 (24x3.0") Duro tyre
- Valve: Schrader Valve
- Rim: 507mm (24") extra wide double-walled rim
- Hub: Q-Axle Hub
- Cranks: 145mm Qu-ax Q-Axle
- Pedals: Standard BMX pedals
- Number of Spokes: 48
- Weight: 6.5kg
- Leg length: 78 - 95cm
Info-centre
The minimum step length applies with shorted seat post.
Learn more about step length and wheel sizes.
How to assemble a unicycle.
| Shipping weight: | 9,00 kg |