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Play bike big bore kits
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[QUOTE="Brianc, post: 551754, member: 26159"] The stock bare and stroke is 54x54. The 150cc big bore will make it 60x54. The stroker is 60x62. Piston speed won't be a concern, so I would go for the 174cc set-up. You will get LOTS more power from bottom thru top with that combo. I thought BBR offers an ignition set-up for most models. How big is your carb? you may want to go to a 26mm carb when the engine is ready. [/QUOTE]
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Play bike big bore kits
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