The Serpent 6586 Centax Coil Spring is built for modelers who want precise clutch feel on vintage 720-09 200mm GP cars. This 1.7mm diameter spring is specified for 2.1cc and 2.5cc engines and helps stabilise engagement for both maintenance and race prep.
This Serpent 6586 unit works with all Centax clutch variants to deliver consistent engagement. Its durable construction supports common .12 and .15 engine setups, making it a practical choice for varied vintage GP rigs.
For heavier engagement settings, consider the firmer Centax spring option SP-909520. Swapping springs is a straightforward way to tailor clutch bite to track layout and driving style.
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