700C

Slick, comfortable mid volume urban tire with excellent puncture resistance, road grip, and speed.

A gravel crushing tire to rule them all
KSCT casing for tubeless conversion and sidewall reinforcement

The Maxxis Receptor is a semi-slick gravel tire designed for riding on pavement, hard-packed dirt roads, and light gravel.

For a safer journey. You have full control on icy roads with the Marathon Winter Plus.

The best allrounder in the field, brought to a whole new performance level.
· Ride faster, more comfortable and with increased puncture protection.
· Made to make you better.

The Strada is Challenge's go to tire for long days on the road.