Racer X Films: 2020 Honda CRF250R Garage Build

For this build, we went to our old reliable: a big-bore kit on a Honda CRF250R makes it way more fun to ride, and adding Twisted Development to the mix can make it even better. Also, the Vortex ignition (mapped by Jamie at Twisted) allows the bike to rev with the big-bore. A big-bore alone in most 250Fs can add 2 to 4 horsepower, and Twisted’s mods and mapping can boost that to 7 or even 9, so it’s quite significant when ripping it around the track.

Build: Jay Clark

Video/Photos: Simon Cudby

Parts List:

CYLINDER WORKS
3mm Big-Bore Cylinder Kit 270cc, Includes Forged Vertex Piston and Top-End Gasket Kit

www.cylinder-works.com

TWISTED DEVELOPMENT
Cylinder Head Porting and Engine Setup, Engine Mapping with Vortex ECU

www.td-racing.com

FACTORY CONNECTION
Suspension Re-Valve and Setup

www.factoryconnection.com

SUPERSPROX
Rear Sprocket, Front Sprocket, Gold MX Race Chain G520-MXT-L-120

www.supersproxusa.com

UNI FILTER
Two-Stage Air Filter

www.unifilter.com

HINSON CLUTCH COMPONENTS
Clutch Plates and Outer Cover

www.hinsonracing.com

FMF RACING
Ti Powerbombs with RCT 4.1 Mufflers

www.fmfracing.com

DIRT TRICKS
Cam Chain Tensioner

www.dirttricks.com

DUNLOP
MX33 Front and Rear

www.dunlopmotorcycletires.com

WORKS CONNECTION
Clutch Perch Assy, Brake Caps, Works Stand II, Brake Rotating Bar Mount, Engine Plugs, Axle Blocks, Oil Filter Cover

www.worksconnection.com

DECAL WORKS
Semi-Custom Graphics Kit in Sparkle, Preprinted Number Plate Backgrounds in Sparkle, Graphic Guards

www.decalmx.com

UFO PLASTIC 
Full Plastic Kit, Mud Flap

www.ufoplasticusa.com 

P3 CARBON
Carbon Skid Plate

www.p3carbon.com

MOTOSEAT
Custom Cool Seat Cover

www.motoseat.com

SCAR
Titanium Footpegs

www.scar-racingusa.com 

ODI
MX V2 Lock On Grips, Handle Bars

odigrips.com

ANTIGRAVITY BATTERIES
Lithium-Ion Battery

www.antigravitybatteries.com

VP RACING FUELS
T4 Fuel

www.vpracingfuels.com

ABOUT DECAL WORKS
Founded in 1989 by Ron and Janeen Joynt, DeCal Works has been the industry leader in pre-printed decals and custom graphics for 30 years. With a passion for racing and innovation, DeCal Works has, since its early days, focused its attention on high-quality products with great customer service.


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