Super Clutch Center Spring 3% up / Super JOG-ZR

[DAYTONA 74050 Super Clutch Center Spring 3% up / Super JOG-ZR DAYTONA 74050]
Made from high-quality silicone chromium steel oil-tempered wire (JISSWOSC-V) for valve springs, with shot peening to improve metal fatigue strength.
This product resists heat fatigue even after prolonged use at high temperatures, providing stable performance. A reliable domestically produced product.
Please choose the product with the optimum spring rate after fully understanding your vehicle's engine horsepower and peak power RPM.
Guide for selecting a center spring (for 50cc scooters)
Installing a product with 10% UP or more on a normal 50cc engine may result in poor acceleration.
Please adjust it along with a review (re-setting) of the total weight of the weight rollers to achieve a better riding experience.
Normal engine + normal muffler: STD to 3% UP
Normal engine + aftermarket chamber: 3% UP to 10% UP
Aftermarket big bore + normal muffler: 3% UP to 20% UP
Aftermarket big bore + aftermarket chamber: 10% UP to 20% UP
≪Compatible Models≫
Remote control JOG/ZR ('01-'03 early models) *Up to F.No. 409999 for 5PT1/2, 5SW1.
Not compatible with SA16J-0410101 and later.
Super JOG ZR ('95-'00)
JOG ('01-'03) <5KN1-6><5SU1-2>
JOG Aprio II (~'98) <4LV2-4>
JOG ZII ('98) <5EM1>, 7.2PS JOG Space Innovation <5EM2/SA04J>
Met-in JOG ('88-'99) <3KJ> / Sports ('89-'93) <3RY1, 2>
5.3-6PS JOG ('86-'88) <2EX/2JA/2TE/2TA>
Vino ('03) <5AUM/N>
*The image is for illustration purposes only, and the design and specifications of the products shown may change without notice. Please understand.