Yamaha 1200 – 0.5 mm Piston Kit


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Pro-X Piston Kit to suit Yamaha 1200/GP1200 engines with 0.5 mm over sized cylinders.

SKU: 01.2574.050

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To suit Yamaha 1200/GP1200 to 1998 (84.00 original bore size).  For GR1200R, please use the 1200R listing.


Pro-X Piston Kit’s come complete with a set of rings, clips and gudgeon pin.  Pricing is per kit, ie. 1 piston.


** TECHNICAL TIP:  Have your cylinders bored and honed by a professional with the correct equipment.  It is standard procedure to order the correct oversize pistons required and take the pistons in to have the cylinders bored to match the piston with correct clearance.



Pro-X Piston Kits are manufactured in Japan and are designed to be an O.E.M. replacement.  The aluminum alloy used in the manufacturing of Pro-X pistons maintains or exceeds the factory specifications.