Xtreme Parts
Big bore kits vary in content.  Kits start from as simple as a Big
Bore Cylinder, Piston Kit and gaskets up to a comprehensive
Kit with Carburetor,Intake, HP head, Performance Cam and
more!
Yes, these kits are close to and most likely will fit the Baja and
Storm 125 motors.  90 upgrade kits are also available.  
***For tires, wheels, shocks,
Flexx Bars, exhausts, air filters
and other accessories see
component pages.

If you don't see it call.  Stock
AC Racing bumpers and nerfs
are available!***
125 Stage 1 Perfromance Kit

125 Stage 1 kit. Includes 52.4mm High
Compression piston, High performance
camshaft and GASKET Kit to increase the
power of your 125!   Greatly increases
compression ratio.

$149.95
 
131 Stage 2 Performance Kit

125 Stage 2 kit. Includes Big Bore 54mm
High Compression piston, High
performance camshaft and gasket kit to
increase the power of your 125!  Greatly
increases compression ratio.  Increases
displacement to 131cc.

$149.95

(Cylinder must be bored)
 
146 Big Bore Kit

146 Big Bore kit for 125, includes 57mm
bore High Compression Piston, Cylinder
and Gaskets along with our improved
profile camshaft.  Our new upgraded
57mm cylinder features a ceramic liner
inside a new lightweight aluminum
casting.  Bore results in 146cc and higher
compression ratio.

$179.95
+Mikuni Carb and HP Cam: $419.95
 
Replacement Pistons

52.4mm, 54mm and 57mm pistons.

$59.95

Ring set for above pistons: $16.95
Heavy Duty Oil Cooler

Comes with braided steel lines , and
fittings, mounting brackets, gaskets and
more.  Cooler has 50% more capacity
than the stock Xtreme oil cooler.


$199.95
High Rev CDI

This CDI allows modified engines to
reach much higher Maximum power when
used in conjunction with High
performance exhaust, carburetion,
improved camshaft and other high
performance modifications.

$36.95 (with harness)
Adjustable Ignition w/CDI

This kit replaces the heavy OEM charging,
ignition exciter and crank trigger system
with a state of the art unit.  A new High
RPM CDI box (no rev limit) and adjustable
ignition timing.

$119.95

The electric starter is removed and other
modifications maybe necessary.
Gaskets Sets

Kit contains all the critical Top End
gaskets to renew the engine on your 125
OEM gaskets and O-rings included.


$18.95
See our mention in DirtWheels 12/2008!!

Typhoon 125 Test
Many of these modifications void the manufactures warranty.

Pictures may not represent exact item.

Prices are subect to change at any time.