Big Bore Kit

04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit


04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit
04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit
04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit
04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit
04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit
04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit
04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit
04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit
04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit
04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit
04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit
04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit
04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit
04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit
04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit
04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit
04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit
04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit

04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit   04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit
04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit. Transform your Honda CRF250R or CRF250X into a powerhouse with this complete 80mm big bore kit for the ultimate motocross upgrade. Genuine OEM Honda cylinder, nikasil plated by Millennium Technologies for superior durability. Forged JE or CP piston with rings, wrist pin and circlips included. Cometic top end gasket kit for a perfect seal. Kibblewhite high-temp Viton stem seals for maximum heat resistance. Heavy duty cam chain for added reliability.

This complete 80mm big bore kit takes your CRF250R/X to the next level. The OEM Honda cylinder plated by Millennium Technologies offers unmatched reliability and durability. Combined with a forged JE or CP piston, you get superior performance and engine longevity.

The top end gasket kit, Viton seals and titanium head studs ensure a leak-free top end built for hardcore use. BPRATV - The Best Parts. DO YOU NEED TO HAVE THIS ITEM INSTALLED ON YOUR VEHICLE? We are BPRATV, offering you the best in parts and service for over 20 years. PRICES AND LISTINGS ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE.

Interchangeable part: We stock the same parts from different manufacturers so that when back orders occur, we have a part that is equal in quality and cost to send, preventing what can sometimes be long waits. This would be the only reason your order might vary slightly from the description, and the part that is subbed will always be comparable quality. If you only want a specific brand, just ask and we will let you know if it is out of stock and for how long. Once a part has been installed or prepped for installation it is no longer eligible for return. Over 99% of people in the world are not qualified to build an engine, and it is the responsibility of the person assembling and tuning the engine to make sure all the parts are correct and work properly.

We ALWAYS STRONGLY recommend work be done by a qualified, experienced mechanic. Please work with us and we will ALWAYS work with you. No other parts nor any labor are included. We are BPRATV, and we offer a huge selection of Titanium fasteners.

Once an item has been used or prepped for use with lubricants, sealant, etc. It is not eligible for return.


04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit   04-09 CRF250R CRF 250R 250X OEM 80mm Big Bore Kit Cylinder Top End Rebuild Kit