WTB Riddler Gravel Cycling Tire

It is designed for mixed terrain. The semi-slick center tread rolls efficiently on pavement and hardpack, while the aggressive side knobs provide the necessary grip when you transition onto loose gravel or dirt corners.

Yes, the Riddler features WTB's Tubeless Compatible System (TCS). Setting them up tubeless is highly recommended to take full advantage of the puncture protection and to run lower pressures for better traction.

This model uses SG (Slash Guard) construction, which provides a bead-to-bead layer of protection. This helps prevent cuts and flats from sharp rocks or debris often found on gravel roads.

The Riddler is a 700x37C tire, so you need to ensure your frame and fork have sufficient clearance for a 37mm width. Most modern gravel and cyclocross bikes will fit this size, but it is likely too wide for a traditional rim-brake road bike.

The maximum pressure is 55 PSI. However, because this is a gravel tire, you should experiment with lower pressures—especially if running tubeless—to improve comfort and grip on rough surfaces.