WTB Riddler TCS Light Fast Rolling Tire – 700 × 37

The WTB Riddler TCS Light Fast Rolling 700 × 37 is built for riders who want a fast gravel tire that corners like a trail tire. Designed in collaboration with WTB athlete Nathan Riddle, the Riddler blends race-day efficiency with confident handling on dry-to-damp, hardpack-to-sandy terrain.

A densely packed, low-profile center tread keeps rolling resistance low on pavement and hardpack, while large, supported, toothy side knobs deliver outstanding cornering grip when the bike is leaned over. The result is a tire that feels quick and efficient in a straight line, yet locked-in and predictable through turns.

This version features WTB’s Light (LIGHT) casing, which reduces rotational weight while still conforming to trail obstacles for improved comfort and control. Grip and longevity come from Dual DNA rubber (DNA2)—a firm, long-wearing center compound paired with softer shoulders for cornering traction.

For reliability on long rides, the Riddler includes SG2 puncture protection, providing a continuous layer of defense from bead to bead without compromising ride feel. Built on WTB’s proven TCS Tubeless Compatible System, it offers secure bead retention, easy tubeless setup, and the ability to run lower pressures for added traction and comfort.

Why Choose the WTB Riddler

• Fast-rolling efficiency with aggressive cornering confidence

• Ideal for dry-to-damp gravel, hardpack, and sandy conditions

• Lightweight casing optimized for speed and control

• Excellent puncture protection for endurance riding

• Proven design from a rider-focused development process

Technology Highlights

• LIGHT Casing: Reduced weight with compliant ride feel

• FR (Fast Rolling): Speed-focused tread layout

• DNA2 Dual Compound: Firm center, softer side knobs

• SG2 Protection: Bead-to-bead puncture resistance

• TCS Tubeless Compatible: Reliable tubeless performance

Technical Details

• Size: 700 × 37

• ISO: 622

• Construction: Tubeless Ready (Folding Bead)

• TPI: 120

• Max PSI: 65

• Tread Style: Knobby

• Sidewall: Non-reflective

• Features: LIGHT / FR / SG2 / TCS / DNA2

If you want a gravel tire that rolls fast, corners hard, and holds up over long miles, the WTB Riddler TCS Light Fast Rolling is a standout choice.