Honda CR265 Big Bore

Motorcycle Honda CR285

Please call to order 608-842-0680

Special Price: $649


Quick Overview

Max Power CR 265 Fits 1997-2007 Honda CR250R


Product Description

Bore: 68.5   Stroke: 72   Actual Displacement = 265.34cc

Engine Modifications Included:

Cylinder: Bore, Port and Plate.

Power Valves: Machined to match big bore cylinder.

Head: Re-chamber to work with the Big Bore piston.

Parts:  Wiseco piston kit, top end bearing, and necessary gaskets.


Notes: No crankshaft or crankcase mods required.

Notes: This kit requires you to send us your cylinder, head, and power valves for modification.


The Max Power Honda CR265 kit is a great option for riders who want more from their CR250.


By big boring the CR250 engine we are able to make up for areas in the power delivery that the stock engine lacks and enhance the areas it works well in.


The CR265 also is the biggest you can go on the stock casting for 2002-2007 engines.  On those years the only way a CR265 can be done reliably without sleeving is by boring the cylinder off-set to the intake side.  That reduces the amount of material removed from the exhaust port side and greatly improves reliability.  That trick is something we figured out  in 1999 on the Honda 125’s and in 2001 found we had to do it to the 250’s as well.


So if you are looking for the best big bore option for your Honda CR250 then the Max Power CR265 is the way to go.


Leave a Reply

Your email address will not be published. Required fields are marked *