The vendor part number is V351A. Catalog decription…. custom boot. new shorter reed cage allows use of lighter reed petals for a noticeable increase in overall performance. reed petals.
Well built reed valve with quick throttle response.
The reed valve is very light in comparison to the stock one, the throttle response is also very quick and aggressive, I tore the chain of my motorized bike! I never knew, that a simple part modification on my engine would lead to such a drastic change in power response.