WTB Nano

While it is designed primarily for gravel and cyclocross, the elevated centerline makes it surprisingly efficient on pavement. You will notice some drag compared to a dedicated slick road tire, but it is a great choice if your rides frequently transition between tarmac and dirt.

Yes, the Nano 40c features WTB's TCS (Tubeless Compatible System) construction. It is designed to be set up tubeless, which allows you to run lower pressures for better grip and comfort without worrying about pinch flats.

The SG2 bead-to-bead layer adds a robust shield against cuts and flats, which is essential for rough gravel. While it adds a small amount of weight compared to non-protected versions, it provides significant peace of mind on long rides without making the tire feel overly stiff or harsh.

The maximum pressure is 70 PSI, but for most gravel applications, you will likely want to run significantly lower to take advantage of the high-volume casing. Experimenting between 30 and 45 PSI is a good starting point, depending on your body weight and the terrain you are riding.

You need to check your frame's tire clearance first. While 40mm is a standard gravel width, many road frames are limited to 28mm or 32mm tires. Ensure your bike has enough clearance for a 40mm tire plus a little extra room for mud and debris.