XR650RBob
XR650L
XR600R
XR400R
XR250R
XR200R
XR100/CRF100
CRF150R
CRF230
CRF250R/X
CRF450R/X
XR/CRF 50
TRX250EX
TRX250 Recon
TRX300EX
TRX450R
TRX400EX
TRX400/450 Foreman
TRX500 Foreman
TRX300 4X4
TRX680
DR250
DR350
DR 350S
DRZ250
DRZ400
DRZ400S
RMZ 250
LTZ400
KLX250
KLX300
KXF250
KLX400
KFX400
MOJAVE 250
BAJOU 220
YZF/WR 400
YZF/WR 426
YZF/WR 450
YZF/WR 250
TTR 250
YFZ 450F
GRIZZLY 660
RHINO 660
250EXC/SX
400/450 EXC/MXC/SX
525/520 EXC/MXC/SX
250XCF
525XC
Polaris Predator
Polaris 500
Honda CRF250R/X...
CRF250R/X
A great lightweight desert racer / motorcrosser. We can help you make yours scream, yet maintain reliability
For any of our articles on how-to/installation, click here for our CRF250R/X tech pages
 
Complete parts kit with sleeve installed in your cylinder Years: 2004-2008
P/N CRF270A
$560
 
 
Complete parts kit installed in a used cylinder. (Core charge of $200.00) The charge is credited back upon recipe of your cylinder back to Thumper Racing. Years: 2004-2008
P/N CRF270D
$750
 
 
Complete parts kit installed in motor with the vavle adjustment Years: 2004-2008
P/N CRF270C
$735
 
 
Complete parts kit with sleeve installed in a new cylinder Years: 2004-2008
P/N CRF270A
$750
 
 
81mm piston Kit for the 270 Big Bore 12:1 Compression Years: 2004-2008
P/N 9953M81
$195
 
 
81mm piston Kit for the 270 Big Bore 13:1 Compression Years: 2004-2008
P/N 10571m81
$195
 
 
Big Bore Sleeve CRF270 kit Years: 2004-2008
P/N 5449
$140
 
 
81mm Gasket Set for the 270 Big Bore Years: 2004-2008
P/N GACR270S
$50
 
 
81mm Ring set for the 270 Big Bore Years: 2004-2008
P/N 3189xg
$35
 
 
78mm piston Kit for the stock CRF250 Years: 2004-2007
P/N 9953M77
$185
 
 
CR250X FMF FACTORY 4.1 Titanium Midpipe Natural Muffler Features exclusive proprietary Chamber Core technology. Years: 2004-2008
P/N 41159
$449.99
 
 
CRF Wrap Around Radiator Braces Years: 2004-2007
P/N 1224
$70
 
 
Thumper Racing Pro Series Seat Cover Years: 2004-2007
P/N SEPSCRF250
$65
 
 
LightSpeed Carbon Fiber Front Brake Line Pinch Clamps Years: 8-Apr
P/N LIGHTSPEED-0000
$26.95
 
 
OEM LENGTH Years: 8-Apr
P/N HAMMERHEAD_08_BRAKE_
$154.95
 
 
CRF250X Factory 4.1 SL – Stainless Steel (S/S) Midpipe Natural finish muffler Titanium slip-on muffler with stainless steel midpipe. Years: 2004-2008
P/N 41157
$390
 
 
CR250X FMF FACTORY 4.1 Titanium Midpipe BLUE Muffler Features exclusive proprietary Chamber Core technology. Years: 2004-2008
P/N 41160
$449.99
 
 
CRF250X Carbon slip-on muffler with titanium midpipe; same muffler as Factory 4.1C system. Fits stock or FMF header. - Years: 2004-2008
P/N 41193
$540
 
 
CRF250X Factory 4.1 SL – Stainless Steel (S/S) Midpipe BLUE finish muffler Titanium slip-on muffler with stainless steel midpipe. Years: 2004-2008
P/N 41158
$390
 
 
CRF250X TI POWERCORE with Natural finish Muffler The titanium PowerCore™ is one of the best pro“The titanium PowerCore™ is one of the best products we have ever produced” states Don Emler Years: 2004-2008
P/N 41201
$315
 
 
CRF250X TI POWERCORE with Blue finish Muffler The titanium PowerCore™ is one of the best pro“The titanium PowerCore™ is one of the best products we have ever produced” states Don Emler Years: 2004-2008
P/N 41203
$315
 
 
CRF250X We developed the PowerCore4 to increase the horsepower and torque throughout the entire power curve and give you a noticeable power increase that is very usable and beneficial, no matter what your riding style or ability is. Years: 2004-2008
P/N 41273
$270
 
 
CRF250X The redesigned PowerBomb is a four-stroke header that incorporates FMF’s patented PowerBomb module at a precise location in the initial stage of the header. Years: 2004-2008
P/N 4113
$179.99
 
 
CRF250X The Ti Q has a completely new design, engineered for maximum performance while maintaining a sound level at or near 93dB on most models. Years: 2004-2008
P/N 41249
$325
 
 
 
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