Bike Build: Twisted Development
Words: David Pingree
Photos/Video: Simon Cudby
We dropped in a 270cc kit and had Twisted Development tune the 2018 Yamaha YZ250F into a rocket ship on wheels.
TWISTED DEVELOPMENT
Head Porting/Valve Seats and Deck, Vortex X-10 ECU Mapping to Operate Second Injector, Spark Plug Cap Hold Down, Custom Cometic Gaskets, Stage-Two Hot Cams, Dual Injector Setup in YZ450F Air Boot
HOT CAMS
Stage-Two Camshafts
CYLINDER WORKS
3mm Big Bore Cylinder Kit 269cc, Cometic Top-End Gasket Kit
VERTEX PISTONS
Race Big Bore Piston Kit (Ring, Pin, Clips)
CYCRA RACING
Full Coverage Skid Plate, Full Plastic Kit with Max Air Flow Shrouds, CV4 Formed Silicone Coolant Hoses, CV4 High Pressure Radiator Cap
SUPERSPROX
Rear Sprocket, Front Sprocket, Chain
MOTOMASTER
Oversized Front Rotor, Steel Braided Front Brake Line
SCAR
Titanium Footpegs
FACTORY CONNECTION
Suspension Rebuild and Service, Linkage
TM DESIGNWORKS
Rear Chain Guide
DECAL WORKS
Semi-Custom Graphics Kit, Pre-Printed Number Plate Backgrounds
DUNLOP
MX3S Front (80/100-21)
MX3S Rear (110/90-19)
WORKS CONNECTION
Elite Perch, Brake Caps, Chain Blocks, Engine Plugs, Oil Filler Plugs, Hour Meter, Bike Stand, Radiator Braces, Oil Filter Cover
RENTHAL
604 Fat Bars, Dual Compound Grips
HINSON CLUTCH COMPONENTS
Complete Clutch Setup and Outer Cover Kit
UNI FILTER
Two-Stage Air Filter
FMF RACING
Factory 4.1 RCT Ti Muffler, Ti Megabomb Header
MOTOSEAT
Custom Cool Seat Cover
VP RACING FUELS
Pro 6
REC MX
Billet Clutch Cable Guide
