S&S, REED BREATHER VALVE. STD O.D. 1993-99

For head vented models. Similar in function to the S&S Reed valve for Twin Cam models. Unlike the regular rotating breather valve which is opened and closed by crankshaft rotation and pre-set timing, the Reed valve uses actual pressure to open and close at the right moment; at different RPMs, this ideal moment varies. This gives the Reed valve an advantage over the regular mechanically timed breather valve in reducing oil carryover, especially at high RPMs.

Note: Not suitable for use with crankcase vented models.