Tight Big Rubber Grommet - 564100487
Prestaflator Tight Rubber Grommet
The original design gives a tight grip on Presta valves. These work best on a few
brands of narrow Presta valve extenders, but are NOT recommended for use with
standard Presta valves. CAUTION: Can cause tubeless valves to pull out of the rim
during removal. Fits all Prestacycle Standard (non-mini), Deep and Right-Angle Presta
Heads and Silca Pump Heads.
? Made from high quality buna-nitrile (BN70) rubber with a durometer rating of 70.