S-Works Turbo Hell Of The North Tubular Aethos Asymmetrical heel counter supports the

Asymmetrical heel counter supports the medial side while removing material from the lateral side

and light enough to make XC racers smile

only it features a unique Endurant casing with bead-to-bead puncture protection and increased sidewall stability

The Arm Covers are your go-to for UV protection and versatility

on a trail ride

S-Works Turbo Hell Of The North Tubular Aethos Asymmetrical heel counter supports theDesigned to excel on roads such as the pave sectors of Ronde Van Vlaanderen and Paris Roubaix, the new S Works Turbo Hell of the North Tubular is born, and it's right at home in the worlds toughest events. The overall design supports you with more traction and comfort, and in the end, will give you more speed compared to other tires. The supple 290 TPI, cotton casing supplies you with a 15% improvement in damping and offers 20% less rolling resistance