2017 CRF250X Build - Racer X Online


The CRF250X is reliable and trusted as a great entry level machine. For this build we customized it for a shorter female rider while getting the power up. The stock 250X is really corked down, but the potential is there.

For the bikes with more time on them in need of a bit of a rebuild, Cylinder Works/Hot Cams made this bike as fast and strong as an R model with a few mods. Since we were doing a piston anyway we went with the Cylinder Works BB kit that just gives a bit more power and does not require any case modifications. The Air-box was cut open and pink wire cut for added revs on top.

We also removed backfire screen and here is the video link to show how easy that is to do. With the Air-box and carb all modified we were able to install our full Yoshimura exhaust.

We utilized the Applied Smog elimination kit and also had the odometer removed and R model front axle installed in place. 


CRF250X with opened up airbox and exhaust installed.45 Pilot42 Leak170 MainNeedle  (R needle) in #2 Honda #16203-MEN-671

Two turns out on Fuel Screw  

Cylinder Works

www.cylinder-works.com1mm Big bore Cylinder Kit 256cc

Includes Forged Vertex Piston and Top-End gasket kit 

Hot Cams

Stage two cam


www.supersproxusa.comFront SprocketRear Gold Stealth Sprocket

Gold Enduro O-Ring Chain

All Balls

Carb Rebuild kiy


Full Exhaust system 

Factory Connection

Suspension rebuild and service. Bike was lowered 1/2 both ends for the shorter rider.


www.imsproducts.comCore Footpegs

Larger Tank 3.2 gallon  

DeCal Works

www.decalmx.comSemi-Custom Graphics kit

Pre printed number plates backgrounds

UFO Plastic

Full plastic kit  

Works Connection

www.worksconnection.comFactory II  StandFront & Rear brake capRotating bar clamp front brakeSteering stem nutRadiator Guards Chain Blocks

Full Clutch Perch  

Dunlop Tire                        

www.dunlopmotorcycle.comAT81 front  90/100-21

AT81 rear 110/100-18 

Uni Filter

Two-Stage Air Filter

TM Designs                                          

www.tmdesignworks.comRear Chain GuideRear Disc & Caliper guards

Skid Plate 

Hinson Clutch Components

Full Clutch pack and outer cover

Moto Seat     

Custom Cool seat cover and cutting of the seat foam for shorter rider.

Motion Pro

www.motionpro.comTitan Throttle Tube

Grip Glue


www.renthal.com604 Fat Bars

Dual Compound Grips


www.tuskoffroad.comComplete Wheel setOversized Rotor/Adaptor BracketRotor rearHand guards with blinkers built in

Dual Sport kit 

Pro Moto Billet

Kick-It Kick stand. Shortened for the shorter bike.

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Based in Corona, California, Pro Circuit Products, Inc. is a leader in off-road motorcycle and ATV exhausts and aftermarket performance parts. Started in 1978, Pro Circuit is the go-to shop for recreational riders and professionals for everything from suspension work to complete engine packages, and everything in between.

About Namura Technologies Pistons and Gaskets

Coming from decades of Powersports aftermarket manufacturing, Namura continues to impress riders and dealers alike with their aggressive development and innovative product design and manufacturing in MX and ATV Pistons and Gaskets. Based out of the suburbs of Minneapolis, Minnesota, Namura is taking piston quality and durability to another level.