The Serpent 6586 Centax Coil Spring gives racers a compact way to dial in clutch engagement on 720-09 200mm GP cars. Its 1.7mm diameter is intended for 2.1cc and 2.5cc engines and helps with both routine maintenance and fine tuning.
Serpent 6586 fits across Centax clutch systems to maintain consistent engagement. Its build supports common vintage engine classes such as .12 and .15, letting you keep setups predictable lap after lap.
For those needing stiffer bite, the SP-909520 harder spring is offered as a substitute. Changing springs is a practical way to tweak engagement for different surfaces and driving styles.
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