*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.
Renewal of conventional product!High quality silicon chromium steel oil tempered wires (JIS, SWOSC-V) for valve springs are shot peened to improve metal fatigue strength. Stable performance even when used for a long time under high temperature.Made in Japan for peace of mind.
Points of Attention
* If there may be an instruction manual included, it will be written in Japanese.
* The BEST and MUST store to find Japanese parts. * Register now for amazing deals and other special offers! *Over 800,000 listed items. It's hard NOT to find your parts.
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