The MK2 Tubeless Valves from Peaty, made from high-quality, lightweight, and high-strength 7075 aluminum, are compatible with most tubeless setups from MTB to road and cyclocross, including carbon, enduro, and DH rims. The unique X-Cut base is designed for use with all tire inserts. The channels machined into the valve base allow air and sealant to flow through when the inserts are pressed against them. Unlike most other valves that are compatible with inserts, Peaty's valves feature a "Straight-Through" design, ensuring there is no reduction in sealant volume or airflow when no tire inserts are used. Installation couldn't be easier. Integrated O-rings prevent the lock rings from scratching the rims, and large soft rubber bases ensure a hassle-free airtight seal. Developed by riders for riders, Peaty's valves come standard with an integrated cap for removing the valve core and a spoke key cap (for standard spoke nipples with a 3.4 mm diameter). This makes tightening loose spokes and refilling sealant a breeze, whether in the workshop or on the race track. Package includes: 1 pair of valves, 1 pair of nuts, 1 pair of rubber seals, and 1 pair of valve caps. Weight: 14.5 g. Dimensions: 60 mm.