Up for sale is a used set of 2 Cylinder Works big bore +3mm (99 mm bore) engine cylinders with +3mm Vertex piston for a 2013-2016 Honda CRF450R. I'm unsure if these will make your bike 480cc or 478cc. You will need to purchase the corresponding +3mm gasket kit, +3mm piston rings, wrist pin, and cir clips. I just verified that all of these items are still in stock on the All Balls Racing Group website. These were used on a healthy 2013 CRF450R. I received them as spares with a CRF I purchased. The seller kept good notes on the usage of each part. The piston shows 20 hours of use and is in good working condition. One of the cylinders shows either 15 or 19 hours of use (handwriting unclear). This bore is very clean and has a nice cross hatching throughout. The other cylinder does not have any indications of hours/use but does appear to be in good working condition. It has a nice cross hatching with some normal vertical scores from the piston skirt. None of these parts have cracks, damage, pitting, gouges, or dents. Look closely at the pictures. What you see is what you get!

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International Buyers: Your country may charge import taxes upon delivery which are your responsibility. Also, please note that USPS Priority shipping to the following countries can take 3-6 weeks and sometimes up to 8 weeks: Africa, South and Central America (Chile, Brazil, Peru, Argentina, etc.), Russia, and South East Asia. 

M7