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Message: [QUOTE="Nick228, post: 1474826, member: 145623"] I bought a 2002 suzuki rm 85 and the engine seized up when I was riding it so i took off the top end half the piston was shattered inside, I'm buying a new piston and I'm wondering if I should buy the same size piston that's already in the bike or if that's the wrong size. I looked it up and it says the standard size for the cylinder of my bike is 48mm and the current piston in the bike is 47.43mm is that the right size or should I buy a 47.94mm piston (sorry if I explained this bad this is my first time ever working on a bike) [/QUOTE]