Blue & Silver Sold Out.

Spark Arrested. Works with stock spark arrestor.   

This CNC machined billet piece works in tandem with your excellent stock exhaust system for better power without increased sound levels. Performance similar to many complete aftermarket exhaust systems!

Better throttle response and increased top end.

150cc BORE KIT

Great overall power increase. Very reliable. Best option for trail riders.

INCLUDES: Sleeve, forged piston, pin, rings, circlips, headgasket, basegasket.

REQUIRES: Resleeving and boring of your stock cylinder. Rejetting.  *Note: may not fit aftermarket cylinders.

Awesome throttle response and lots of top end power. Best kit for riders who like to rev.

INCLUDES: Sleeve, forged piston, pin, rings, circlips, headgasket, basegasket.

REQUIRES: Resleeving and boring of your stock cylinder. Balancer gear removal (if run with balancer gear, piston and sleeve mods will be required). Case Machining. Rejetting. Race gas 110 octane or greater.  *Note: may not fit aftermarket cylinders.

170cc’s w/61mm piston

Excellent power and silky-smooth torque characteristics with this stroker. Effortless wheelies!

INCLUDES: Work done on your stock crank. If parts are needed, they will cost extra.

REQUIRES: Send in your crank for modification.  Download our Stroker Booklet for details.  Balancer gear must be removed (instructions included).

RECOMMENDATIONS: Works best with Powroll pistons. Modifications may be required if using other piston or cam brands.

Outright

(includes core charge)

#12747-22747G   $275.00

HARDWELD CAM, Lift .257” IN/.256” EX.

Great mid-to-top end horsepower increases. Best when used with our bore kits. Works with stock valve springs and retainers.

REQUIRES: Send in your good cam for work, or pay core charge. Turn-around approximately 4 weeks.

Stainless steel for better strength and heat resistance.