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 XR50 / CRF50...
XR50/CRF50
These fun bikes have been showing up everywhere with modifications. We can help you make yours scream, yet maintain reliability
For any of our articles on how-to/installation, click here for our XR50/CRF50 tech pages
 
Piston Kit 39mm STD 11:1 compression Years: 82-87  
P/N 4828M39  
$63
 
 
Piston Kit 40mm 11:1 compression Years: 82-87  
P/N 4828M40  
$69
 
 
Piston Kit 41mm 11:1 compression Years: 82-87  
P/N 4828M41  
$69
 
 
Top end gasket kit Years: 82-87  
P/N GAZ50  
$20
 
 
Piston Kit 39mm STD 11:1 compression Years: 88-08  
P/N 4998M39  
$55
 
 
Piston Kit 40mm 11:1 compression Years: 88-08  
P/N 4798M40  
$65
 
 
Piston Kit 41mm 11:1 compression Years: 88-08  
P/N 4798M41  
$65
 
 
Top end gasket kit Years: 88-04  
P/N GAXR50  
$20
 
 
Pro-Cross anodized billet aluminum cylinder, piston, rings, clips, pin, gaskets and high-performance Web Cam designed for off-road Big Bore kit Years: 2000-2003  
P/N 9030032  
$599
 
 
Works Shock 50-90lb Years: 00-05  
P/N 472505111  
$265
 
 
Works Shock 125-180lb Years: 00-05  
P/N 472505181  
$265
 
 
Works Shock 170-225lb Years: 00-05  
P/N 472505241  
$265
 
 
Steel folding Shift Lever Years: ALL  
P/N MYA5  
$29
 
 
Steel folding Shift Lever Years: ALL  
P/N MYA5  
$29
 
 
Kit contains all components necessary for handlebar upgrade Kit contains Joker Machine Tall Boy riser, Joker Machine carburetor cap, handlebar, crossbar with Joker pad, grips, brake lever and cable, kill switch and throttle tube housing and cable Forward mount kit includes Tall Boy forward mount handlebar riser; moves bars forward 1 5/8” and has a 3” rise Years: 2000-07  
P/N 6020009  
$220
 
 
Kit contains all components necessary for handlebar upgrade Kit contains Joker Machine Tall Boy riser, Joker Machine carburetor cap, handlebar, crossbar with Joker pad, grips, brake lever and cable, kill switch and throttle tube housing and cable Forward mount kit includes Tall Boy forward mount handlebar riser; moves bars forward 1 5/8” and has a 3” rise Years: 00-05  
P/N 6020010  
$230
 
 
Skid Plate Years: 00-05  
P/N 5050047  
$38
 
 
 
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mid left
mid right
lower left footer bottom mid lower right