Below are the available bulk discount rates for each individual item when you purchase a certain amount
● The Progressive Double Valve Spring set can perfectly be installed in your stock cylinderhead.
This set is also a replacement set for if you had the Yuminashi Progressive Double Valve Spring & Retainer set installed before and you would like to order only the springs now to replace them for your next race.
We recommend with racing applications to check the free lenghts of the valve springs every 3th race and to replace as required.
A rule of thumb is to replace the valve springs each time you replace a piston...
SMART SHOPPER TIP:
※ BUYING MORE THEN 1 PIECE CUT THE TRANSPORT PRICE, AND YOU RECEIVE A 10% DISCOUNT ON TOP OF IT!
※ B2B: CLICK THE "BUY IN BULK AND SAVE" LINK!...
All prices are in THB