WTB Nano 40 TCS Tire

Color: Black
Size: 700C x 40 MM
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With its high-volume 40 mm casing to smooth out the rough stuff and a knob pattern that glides over hard terrain and dig into loose surfaces, the WTB Nano 40 TCS tire is an all-out gravel destroyer.


  • High-volume 40 mm casing smooths out jarring gravel while also reducing drag and rolling resistance
  • Flying-V knob pattern channels speed from one knob to the next with as little energy loss as possible
  • Nearly uninterrupted centerline provides swift efficiency, while the staggered outer knobs allow you to stay on the gas up chunky climbs and through loose gravel corners
  • The height of the knobs provides traction by digging in while pedaling or braking on loose surfaces
  • Built with TCS (Tubeless Compatible System), the standardized WTB tubeless system
  • TCS tubeless casing nearly eliminates flats and allows lower tire pressures to improve traction and comfort compared to a traditional tube-type tire
  • Ideal for hardpack, dirt and gravel conditions
  • Note: Tire images shown may not reflect size/color/material options available on this page


View all WTB Gravel Bike Tires

Technical Specs

Best Use

Gravel Cycling

Wheel Size


Tire Width

40 millimeters

Bead Type




Thread Count Casing (tpi)

60 threads per inch

Tread Type

Knobby Tread

Recommended Pressure (psi)

25-50 pounds per square inch


497 grams

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