Runs on pump gas.

Ultimate Big Bore Kits

Increase your CRF230 to 250cc with ENGINES ONLY Big bore kit. Add horsepower for a 25% increase in power. Runs on  pump gas, 91 octane / 11.5:1 compression ratio / Kit includes cylinder resleeved (exchange), 69mm high compression piston with rings and clips, all top end gaskets. 
cylinder core charge $250.00

**Requires case machining**

23025 BBK  $599.95

Headwork & Cams

CRF 230 F/L

Actual size 247.54cc.

Send us your complete engine only (no oil) and we will do a top end teardown, 3 angle valve job, cylinder bore and reassemble your engine, valves adjusted and timing set.
(you add oil, motors shipped dry)

23025 INS  $600.00

Lower Gasket Set

Includes center gasket /clutch gasket /clutch nut /filter gasket /counter seal /shift seal /pulse gasket /ignition gasket / valve seals /ex gasket   

23025 GSK  $79.95

Case Machining

Machine CRF230F cases for 250cc kit (cases only).

23025 CMG  $90.00

Includes intake manifold matching for increased airflow.

23030 CHP  $250.00

Stage #1 Torque Cam.

Stage #2 All Around Cam increases mid range.
Works well with stock rockers, requires springs only, no additional work. Bolt in.

Stage #3 Dirt Track / TT / Supermoto Type.*

Stage #4 Full Race / Roadracing Type.*

*Requires EO spring kit and EO head modification.

Core charge if you do not send us your Stock cam $90.00


Camshafts fit new "L" "M" models also.

15001 CAM  $369.95

15002 CAM  $369.95

15003 CAM  $369.95

15004 CAM  $369.95



Required for our stage #3 & #4 camshafts.
Includes seat modification and valve job. 

15034 HDM  $250.95

Allows your cam to be degreed  perfectly.
Sprocket ONLY.

15023 SCS  $44.95

Fits new "L" "M" models also.

Carb & Intake Systems

CRF 230 32mm Flat Slide Intake Kit

For CRF 230 and our 250cc motor kits. Includes Carb. fully jetted, intake manifold, airbox boot or K&N air filter, plus CR throttle and cable.

23032 FSK  $549.95


OUTLAW Series High Pipe w/4" SUPERTRAP

This is simply the best pipe for your CRF230F in MX or offroad setup. SUPERTRAP tunable to meet noise requirements. Forest Service approved spark arrester.Now stainless steel construction.
2008 and earlier  F models15005 OHP
"L" model NOW AVAILABLE AND IN STOCK click for photos

15005 OHP  $499.95

For flat track, supermoto and road racing applications (Lineaweaver Design).  Now stainless steel construction.

23005 OlP  $499.95

OUTLAW Series Low Pipe

1" longer folding shift lever for crf 230 all years.

15023 FSL  $44.95

Folding Shift Lever



This exhaust end fits on your stock XR or CRF pipe in place of the stock or missing baffle. Increases power by being less restrictive than the stock baffle. No drilling or cutting required, it bolts right on. 

Our 12 plate exhaust ring is adjustable to meet AMA and CA 96db noise requirement.
Race proven SUPERTRAP plate spark arrestors disperses noise radially for quieter operation and avoids the clogging of screen style spark arrestors.

Includes all mounting hardware.  


230vs 250torque.jpg

Camshafts fit new "L" "M" models also.

Required for our all EO performance camshafts.
Includes high RPM spec intake and exhaust springs.

15034 VSK  $99.95