Komplett big bore kitt ATHENA presents its new BIG BORE Kit for the SUZUKI RM-Z 250, tested on tracks and on dynamometric bench. Contrary to the competitors ATHENA is the only one producing this cylinder in a BOLT-ON version, in other words it can be installed on the engine without any crankcase modifications. ATHENA have matched the cylinder with a forged piston which has a higher compression ratio than that of the OE, we intended to reach the best performances ever. The gaskets have been developed using last generation technologies; in particular the multilayers head gasket has been redesigned to be suitable to the new dimensions and performance of the BIG BORE cylinder kit.