The ultimate tube for racing with disc brakes 

The lightest, fastest inner tube available, engineered for racing on disc brake wheels only. The highest speed available with the convenience of clinchers tires.

Ultralight TPU construction reduces rolling resistance by 14% and weight by 70% compared to butyl – switching to the Ultra Light Speed Inner Tube saves up to 160g of rotational mass – an unbeatable ratio of weight reduction to cost. Due to its ultralight, extremely supple qualities, TPU requires special care when mounting (please see the installation and inflation instructions included with the tube) and is only suitable for use with disc brake wheels.