WTB Nano TCS Light Fast Rolling Tire – 700 × 40 (Discontinued)

Limited availability — once these are gone, they’re gone.

The WTB Nano TCS Light Fast Rolling 700 × 40 earned its reputation as one of the most versatile and efficient gravel tires ever produced—so much so that it became the #1 choice for riders tackling the Tour Divide, the longest mountain bike race in the world.

While this model is now discontinued, remaining stock offers a rare opportunity to pick up a tire built for speed, confidence, and long-distance performance across a wide range of gravel and hardpack terrain.

Proven Performance

• Fast-rolling centerline: Rolls efficiently across hard surfaces and smooth gravel

• Predictable traction knobs: Micro knobs provide lateral grip when conditions loosen

• Light casing: Balances low rotational weight with trail conformity

• TCS Tubeless Compatible: Reliable tubeless setup with secure bead shape

Designed for Real-World Adventure

The Nano matched gravel-racing speed with adventure-ready reliability. A smooth center tread minimizes rolling resistance, while the surrounding grip elements keep you stable in corners and off-camber sections. Built on WTB’s Tubeless Compatible System (TCS), it’s easy to run tubeless for lower pressures, improved traction, and added comfort.

Even though WTB no longer produces this tire, existing stock still represents excellent performance and value—perfect for riders who want a fast, confidence-inspiring gravel tire without paying premiums for current year models.

Technology Highlights

• LIGHT Casing: Reduced weight with compliance on trail obstacles

• FR Fast Rolling: Speed-focused tread pattern

• TCS (Tubeless Compatible System): Easy tubeless setup and reliable bead retention

Specifications

• Size: 700 × 40

• ISO: 622

• Bead: Tubeless Ready (Folding)

• TPI: 60

• Max PSI: 65

• Weight: 530 g

• Tread Style: Knobby

• Sidewall: Non-reflective

Note: As this model has been discontinued by WTB, inventory is limited—get them while they last.