The Wheels Manufacturing Rim Presta Stem Savers PSS-1 Are the alternative to rim grommets! For installing Presta valve tubes in Schrader valve drilled rims. Aluminum stem saver keeps Presta stems from moving inside of Schrader valve hole. Helps prevent valve breakage.
SPECIFICATIONS
Converts Schrader valve rims to Presta valve rims
No Tool required
Includes 2 stem savers
Material: Polished Aluminum
Length: 11.4mm
Outer Diameter: 8.2mm / 9.3mm
Inner Diameter: 6.15mm