Muc-Off Tubeless Kit

The 21mm tape width is designed for narrower road and cyclocross rims. You should measure the internal width of your rim bed before purchasing; the tape should ideally be the same width or 1-2mm wider than your internal rim width to ensure a proper seal.

The included valves are 60mm long, which is generally sufficient for most standard road and gravel rims. However, if you are running very deep-section aero wheels, you may need longer valve extenders to ensure the pump head can attach securely.

Yes, this is a complete conversion kit. It comes with two CNC-machined valves, two pouches of sealant, and a 10-meter roll of rim tape, which is enough to tape two wheels.

While it depends on your local climate and how often you ride, it is generally recommended to check your sealant levels every 3 to 6 months. You can easily top it up by removing the valve core and injecting fresh sealant directly into the tire.

This specific kit is optimized for road, gravel, and cyclocross setups with 21mm tape. Most mountain bike rims are significantly wider, so this tape will likely be too narrow to create an airtight seal on a standard MTB rim.