1/2-13 THREAD

a center spacer and two wheel spacers

OEM replacement reference 62707-84 (front) and 62704-84A (rear)

Fits: > Head Cup: 49-21 B

91-99 Dyna

S&S, REED BREATHER VALVE. STD O.D. 1993-99 Olja//Oil 1/2-13 THREADDescription 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 on the right moment, at different RPM's this ideal moment varies. This means an advantage for the Reed valve over the regular mechanical timed breather valve in reducing oil carry over,