Athena 183cc Cylinder Kit
This cylinder kit from Athena takes your 125cc learner legal right up to 183cc. Included in the kit is the aluminium cylinder with nickel-carbide plating designed with wider water jackets for more efficient cooling. A cast-lite piston complete with rings, gudgeon pin and circlips and a full top end gasket set. Also included in the kit is the new ECU that changes the RPM curve of the engine dramatically. This kit comes out at 17.1 HP on the dyno and the graph shows the power coming straight in at 5000 RPM thanks to the new ECU supplied with the kit.
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183cc piston kit for Athena 183cc cylinder kit AD/P400485100034
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Fits Yamaha YZF R125 WR 125 with Athena big bore kits fitted