These Presta valve stems are suitable for tubeless rims and tires on road, gravel, mountain, and fat bike wheels. The kit comprises two Presta valve stems, two machined aluminum caps, two nuts, two extra valve cores, a unique machined aluminum valve core remover, and three rubber base options for varied rim internal shapes. It offers 44mm and 60mm stem length options, a slotted stem base for tire insert compatibility, an oversized stem nut for better sealing and removal, and stem threading below the rubber seal for enhanced performance on single-wall rims. It includes three rubber bases: two cone types (one installed) and one channel. Replacement parts are available via Wolf Tooth Right To Repair, including cap and nut kits with two each, and valve cores. Related products include color accents and tech specs, with a weight of 44mm 9g |60mm 12g, made of 7075 Aluminum, and a 4mm hex tool interface.