S&S CYCLE REED VALVE, 84-99 +.030 31-2100

If you're running a high-rpm engine with marginal piston ring seal, oil carryover into your cam chest is costing you performance and creating maintenance headaches. The S&S Cycle reed valve solves this problem by automatically compensating for air mass acceleration in the crankcase, eliminating the lag time that stock breathers can't handle. You'll see cleaner combustion, reduced blow-by, and the kind of reliable operation that separates dialed-in engines from the rest.

• Pressure-activated design
• Eliminates crankshaft rotation dependency
• Reduces high-rpm oil carryover
• Automatic demand-based operation
• Bolt-on installation
• No timing mark alignment required
• No rotating parts
• Fits 84-99 models
• .030 overbore compatible
• Made in the U.S.A.
• MPN: 31-2100