Ranglebox 30mm Tyre Hub - 3mm D shaft

Wheel hub for 30mm Ranglebox tyres.
Compliant, designed to be printed out of TPU, I use the same hub with a gear fitting on my competitive Antweights (150g).
Since moving to these we've had significantly less motor failures due to the compliant nature of both the tyres and hubs. They are designed to flex about the main shaft on impact rather than transfer radial forces to the gearbox.