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RM-Z450 05-07 Athena 490cc Big bore kit
Includes: Brand new aluminum cylinder with Nickel-Carbide coating, 100mm forged and moly coated piston kit (piston,rings,pin and clips) and top-end gaskets. Bolt on kit,(no crankcase machining etc.) no other modifications needed, other than the usual jetting changes. Our price is $630. $50 off if you send your old cylinder