Racer X Tested: Dr. D 2013 KX250F


We spruce up a 2013 KX250F for a bit of added performance. Products include:


Dubach Racing Development: dubachracing.com

SS/CF Complete NS-4

Hour Meter W/Bracket


RAD: radmfg.com

D.I.D Dirtstar ST-X Rims

Rad Signature Series Hubs

Rad Spokes/Nipples

Colored Billet Nipples


Works Connection: worksconnection.com

Axle Blocks

Brake Cap Front

Brake Cap Rear

Engine Plugs

Oil Fill Plug

Rotating Bar Clamp

Pro Launch

Elite Perch

Peg Armor


Pro Taper: protaper.com

50T RS Rear Sprocket

13T Front Sprocket


Aluminum Throttle Tube

Handlebars SE Henry/Reed

Dual Density Half Waffle Grips


Hinson: hinsonracing.com

Complete SS Series Clutch Kit


MotoSeat: motoseat.com

Ribbed Traction Seat Cover


Enzo: enzoracing.com

Fork Revalve

Shock Revalve


TMR (Tom Morgan Racing): morganracingengines.com

Head Porting (K25F-013A)

Disassemble-Reassemble Head

R&R Cylinder and Head

Install Piston/Check Clearance


CP Pistons: cp-carrillo.com

Piston Kit #MX3051C (14:2:1)


Hotcams: hotcamsinc.com

Stage 1 Camshafts




Split Designs: splitdesignsco.com

Semi Custom Graphics


Dunlop: dunlopmotorcycle.com

MX51 Rear 110/80/19

MX51 Front 80/100/21


Cometic: cometic.com

Screen Eliminator Kit


Tusk Racing: tuskoffroad.com

Oversized 270mm Typhoon Kit


Maxima: maximausa.com

Synblend 10w40 oil


FAB 1 Filter Oil

Chain Guard

Contact Cleaner



ProFilter: maximausa.com

Premium Air Filter

Oil Filter Cover

Oil Filter


CV4: cv4.net

2.0 high temp radiator cap