Challenge handmade tires combine comfort, performance and grip in a way other tires can’t match. Unlike tires mass-produced through industrial vulcanization – a process that relies on heavy machinery and minimal labor to heat-mould synthetic butyl rubber and nylon into a tire shape – handmade tires are assembled step-by-step by experienced craftspeople. High quality natural glues and latex coatings are applied to ultra-supple casing materials like silk, cotton, or polyester. The natural rubber tread is moulded and attached with no vulcanization required – the materials maintain their superior characteristics. The result is a small-batch tire with a ride feel that is simply on a different level.