After nearly 2 years in development, Challenge’s new tire, the Limus, is ready to hit the mud. The Limus features a very aggressive tread pattern that will be perfect for the worst conditions you can throw at it. Its 260 TPI Super Poly casing is very supple and will give you as much control as you need when you’re running at low pressures. Tread is glued onto fully-inflated casing to achieve a neutral tread state when tires are in use. Cotton casings should be sealed to protect against moisture! 40mm valve stem Available in 700c x 33 mm. Absolutely no tubulars can be returned once glued!