JIMS, steel breather valve spacers .145" - L77-99 B.T. (excl. Twin Cam) (NU) 501910 Fits pistons with a bore

Fits pistons with a bore diameter of 14 mm up to 28 mm

Features a hand-spun 5-3/8" polished aluminum cover with a high-quality element for high flow as well as superior protection from dust and dirt

A critical feature to keep torque available at lower RPM although the overall length of the system is very short

Light brown/beige

De bubble shield smoke is natuurlijk een musthave voor alle open face helm rijders

JIMS, steel breather valve spacers .145" - L77-99 B.T. (excl. Twin Cam) (NU) 501910 Fits pistons with a boreUse with steel breather valves only. Large hole. Used to set correct end play. Note: Steel breathers require steel breather valve spacers. Plastic breathers require plastic spacers. Do not intermix steel and plastic parts.