For those still wanting more rubber than the 40mm Nano and can fit a larger tire in their frame, WTB introduces the Riddler in 45mm. This multi-purpose tread is designed for everything from ‘cross racing to dirt road riding. Big tires like this can drastically change your ride quality, for the better. I’ve got a set of the Riddlers waiting to be mounted up and can’t wait to get in a few rides on them. In stock now at your local dealer and see more information at WTB!