WE LOVE MINIBIKES.

250 BIG BORE

Runs on pump gas.

CRF/XR 150 Ultimate Big Bore Kits

2006-17 225 kit installation
Send us your complete engine only (no oil) and we will do a top end tear down, 3 angle valve job and reassemble your engine, valves adjusted and timing set. No case machining required.
(you add oil, motors shipped dry)

15022 INS  $300.00

 A real race proven pipe with SuperTrapp 4" tunable plates (CA and AMA 96 DB legal) disperses noise radially with no loss in power.
Aluminum heat guard for enhanced rider protection. Outlaw pipes not only look great they make better power across the whole RPM range, this true megaphone design creates more low end and more top end power. Real performance in a quality pipe that includes a tuned headpipe and spark arrester. This pipe can take abuse and is ready to take on Hare Scrambles, TT, Motocross and Supermoto.  
Made in America    Now stainless steel construction.

IN STOCK NOW

15005 OHP  $499.95
15006
OHP  $499.95

Exhaust Systems

Carb & Intake Systems

Accessories

Positively the best dirt track pipe you can buy for your mini. Shipped with open end and stainless steel construction. For flat track, supermoto and road racing applications 

2005 and earlier 15005 OLP
2006 and later 15006 OLP

Fits 03-05 motors
Oh Yea! The BIG kit. This is not a pick a piston and stroke your crank death wish motor kit. It is a well designed and reliable motor kit for use with our cams, intake kits and Outlaw exhaust. Increase your CRF150F to 247.54cc with an ENGINES ONLY Big bore kit. 91 octane / Big bore piston with 11.5:1 compression ratio / Kit includes New high compression piston with rings and clips, head and base gaskets, cam chain tensioners, Stroker crankshaft and all hardware. Not recomended for kick starting. RUNS ON PUMP GAS

15025 BBK  $1299.95

Above kit with new cylinder bored. Includes rings sized and ready for installation. Bolt on kit.

15013 BBC  $399.95

Fits 06 - 2017
Increase your CRF150F to 225cc with an ENGINES ONLY 225cc Big bore kit. This proven safe, reliable and fun bolt on kit includes a new cylinder, forged piston, clips rings and top end gaskets. 11.5 : 1 compression ratio
No cylinder exchange required.  
DYNO CHART
 Runs on pump gas 91 octane, We recommend our 28mm intake kit and Outlaw exhaust with this kit.

15022 BBK  $599.95

Fits 06 - 14 electric start motors ONLY
13.0:1 150CC Class legal CRF150F piston kit.
57.48mm, 149.98cc,
requires cylinder boring.
Complete kit with 13.0:1 piston and gaskets.

15013 BBK  $249.95

2003-05 250cc Kit Installation
Send us your complete engine only (no oil) and we will do a complete top and bottom end tear down, bore your cases, 3 angle valve job and reassemble your engine, valves adjusted and timing set. Includes case machining.
(you add oil, motors shipped dry)

15025 INS  $600.00

Case machining (cases only) 250cc kits

15025 CMG  $90.00

15005 OLP  $499.95
15006
OLP  $499.95

Great for stock motors to full race configurations.

23030 ABM  $90.00

Includes Carb. /cable /intake manifold and K&N filter or stock type air box boot. Works great with our 2006-2011 225 big bore kit.

15028 FSK $399.95

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.

15032 FSK  $499.95

Headwork & Cams

Cylinder head porting and intake matching.
We open your ports and match intake manifold size to work with your choice of intake kits

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.*

*Requires EO spring kit and EO head      modification.


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 $120.00

15001 CAM  $369.95

15002 CAM  $369.95

15003 CAM  $369.95

15004 CAM  $369.95

EXCHANGE

Camshaft 06-12 electric start motors

15006 CAM  $159.95

Core charge if you do not send us your Stock cam $120.00

EXCHANGE

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

15034 VSK  $159.95

Stage #3 & #4 Head modification

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

15034 HDM  $250.00

Slotted Cam Sprocket

Sprocket ONLY.

Allows your cam to be degreed  perfectly.

15023 SCS  $44.95

1" longer folding shift lever for CRF150 03~06

Folding shift lever

15023 FSL  $44.95

CRF/XR 150

CRF/XR 150

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.  

$124.95

CONTACT

1870 Stone Avenue San Jose, CA 95125

Tel: (408) 275-6300
 http://www.xr100.com

enginesonly@yahoo.com

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