HPI Challenge Spec Racing tires

HPI is releasing an all-new tire design to solve the problem of hard-to-find spec racing tires for on-road racers. Developed with the help of the HB racing team, HPI has developed a durable tire with excellent traction and high speed stability – key factors on designing a successful racing tire. Testing took place from the UK to Thailand, and the results have been very impressive. The HPI Challenge 30 tire/wheel set features a low profile, fabric belt reinforcing and a unique blend of rubber to deliver good traction and excellent durability. The wheel is an HPI design molded in a stiff plastic for improved high-speed stability. The inserts used in the wheel are precisely molded to ensure consistency for predictable performance from set to set.

Source: HPI [hpiracing.co.uk]