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Product Detail
Specification
Yellow: spring rate increased by approx. 3Description
Renewal of conventional product! High quality silicon chromium steel oil tempered wire for valve springs (JIS/SWOSC-V) is shot-peened to improve metal fatigue strength.
Even when used for a long time at high temperatures, it is resistant to heat-sagging and exhibits stable performance. Safe domestic production.
Even when used for a long time at high temperatures, it is resistant to heat-sagging and exhibits stable performance. Safe domestic production.
Note
Other types are here.
Caution
*Simple painting for identification is the finish of your product.It is not permanently colorfast and the color may peel off during use.*Please select the product with the best spring rate after fully understanding the engine horsepower and peak power generation speed of the bike.
[Guide to selecting the center spring (for 50cc scooters)]
■Stock engine + stock exhaust: Stock - 3% UP
■Stock engine + aftermarket chamber: 3% UP - 10% UP
■Big bore and stock exhaust: 3% UP - 20% UP
■After-market big bore + After-market chamber: 10% UP - 20% UP
*If you install more than 10% up products to a stock 50cc engine, the acceleration feeling may become worse.
*Please review the total weight of the weight roller (re-setting) and adjust it to get a better feeling.