Tuning clutch spring.

Made from a special steel alloy that is more resistant to high temperatures and therefore does not run.

The engagement point of a standard Zenoah coupling is with the standard spring FG7317/08, about 5,000 rpm, so picks up reasonably early so the engine can not lose its strength. With this spring the same clutch picks up at 8,000 rpm, so a clear improvement in acceleration.

Suitable for:

• TPS7025
• TPS7320
• TPS7330
• TPS7330 / 01
• TPS7315 / 00
• HPI15448
• FG7316
• FG7316 / 01
• FG67350
• LOSB5039

Suitable for all clutches and shoes from Zenoah, CY, Feulie and Dynamic engines, or similar.