When big whoops on big hoops are on call. The 29er kit works with Bontrager 29’er rim brake (Bontrager 29er disc uses the 26” kit), Salsa Delgado-X, and Mavic 520s. For some 29ers, particularly rims with a narrow cavity the 26” kit is better.

This kit has everything needed to convert one standard wheelset and tires to tubeless: Two molded rim strips with Presta valve cores, one pint of Stan’s tire sealant with 60g scoop and a spout, and a 10-yard roll of rim tape. Detailed instructions are included, and we recommend following them to the letter. If there’s a concern about sealant, buy an extra quart now to recover from those initial screwups without sidelining the wheels.