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Se décline en 2 options :
SCOOTRACING
Fourni avec manchon et visserie de montage
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permet d'exploiter au maximum des clapets du commerce comme les Athena
Cale boite à clapet 5mm Derbi/AM6 Crazybike Se décline en 2 options5mm shim to be inserted under the valve box. Allows to give volume in the low engine which in my case allowed me to gain 0. 5hp (and 0. 8hp with 10mm of shim) with a 90cc MXS GP engine. This result is to validate on the bench for each configuration. The assembly is possible on all Derbi as well as AM6. It is possible to use it directly with the VForce 3i.
US$ 16.90
US$ 12.90
US$ 144.50
US$ 14.20
