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Message: [QUOTE="TobyS, post: 117849, member: 18268"] I called them, and they said "it's within tolerance", which begs the question: whose tolerance? I didn't bother to ask, but I'll bet my paycheck that it's not within Honda's tolerances. Honda did a great job of making their casting light, and this piston is bigger. Forging a piston requires more meat between the pin bores and the crown also. The pin is longer, which makes it 6g heavier, and I'm definitely not taking any material off that. The counter balancer must still compensate well. I know that the bigger pistons (300 cc) must be even heavier, and I haven't heard any complaints from anyone. [/QUOTE]