Our fork revalve is the culmination of a lot of imagination, computer development, and most importantly trackside race development and testing. We don't settle, ever. Neither should you. Inlcudes everything in our rebuild service plus our exclusive revalve.

Our shock revalve gets you going faster, now! It's all about getting each element working in unison, from the linkage ratio, to the particular chassis, to most importantly, the rider. It's time you worried about the race, not your shock!

We offer both hardcoat and normal anodizing in almost any color. Want those hubs black? Want those fork tubes hard coated? Engine cases, perches, triple clamps etc....we can do it at an amazing price and the highest quality possible.

This package includes our highly developed cylinder porting and epoxy work coupled with our head modifications to suit your fuel usage and our cylinder changes. We have hours of race testing on this package. These mods really wake up this bike!

Our national build for the YZ tiddler includes everything necessary to put you at the head of the pack. This package includes extensive case modifications, transmission superfinishing and coating, extensive cylinder modifications along with head modifications. Call us for more info about the addition of ceramic bearings, custom ignition, pipe and silencer combo's, carb modifications, and reed cages to this package.

Our 103 is the real deal. Our entry level package includes everything you need to get your feet wet in the supermini class. We first strip your cylinder, bore it, perform a mild port job, then re plate. We then perform necessary case modifications for piston clearance. Kit includes labor for case splitting and a top end kit with gaskets.

The CR125 has problems! We hated letting a good chassis go to waste, so we figured we would develop this engine to make use of it! Extensive epoxy work, extensive transfer port work, and extensive exhaust port work result in one fast motor! Head mods and power valve mods are included with this package

The YZ125 provides an excellent baseline for modification. With our massaging, this bike really comes to life and will leave others wondering if it's really a 125! Indeed it is, and indeed you will be impressed. Includes H.P. Cylinder Porting, and Head Mods. Ask us about pipe and reed combos!

Our initial YZ250 offering is packed with power! Our cylinder modifications and matching head mods provide and amazing foundation for an already awesome stock engine! We suit the set up to you.

This package is similar to our first package, however it includes our secret national spec cylinder porting, a special pipe arrangement (call for details). This engine is incredibly powerful and is easily capable of putting you out front at the nationals.

Our final 103 package for the YZ103 supermini build includes everything from package 2 plus our custom hand fabricated cone pipe, transmission isotropic super-finishing, transmission coating, crank balancing, and 10 map programmable ignition with our custom ignition curve. Also includes our special insert-able head and H.P. exclusive insert.

Our initial offering for the mean green machine includes our exclusive cylinder porting arrangement that has been carefully developed along with head mods to suit your fuel usage and our porting. This completely bike is transformed

Our 265 kit for the already great YZ250 is aimed at giving you the power you want, with the delivery you need. This isn't just a machinist's motor, as our porting is specifically developed to handle the extra CC's with this kit. Comes complete with top end, gasket set, and all machining and modification work necessary to get you ripping!

Our 285 is highly developed. We have truly constructed the 285 of your dreams here. Sure our price is higher than some, but it's for good reason! No labor is skimped here! The cylinder is EXTENSIVELY reworked to match the new bore size, and the end result is an engine that performs better per cc than the stock 250 by a considerable margin. Put that in your pipe and smoke it!

Our modification package for the 05-07 Honda CR125 picks up where honda R&D left off (with a vastly improved motor over their previous years) and develops excellent power from the moment you crack the throttle. This motor truly rips for a 125!

Our Honda CR125 big bore offering absolutely shreds. We have a couple different customizable variations depending on year model - but all said no matter what year model you have - we can turn it into the best honda 134 you will ever ride. Includes everything needed to get you running - from boring, mod work, plating, powervalve work, to top end and gaskets.

Our second Mod Package for the CR125 includes everything from package 1 plus the correct specific piston for this unique cylinder arrangement, top end gasket kit, as well as the intake boot off an 05 and up CR125.

You wont beat this price anywhere for the parts and services provided!

This 144 modification package transforms the yz125 from fun - to insanely fun! It gives you the power you need, with the delivery you want. Various options available for fuel usage and rider preference.

Includes everything you need for installation, boring, powervalve cutting, head work, porting, plating, and a top end kit.

We have developed the best settings possible for your Athena 144 kit. The athena big bore kits are lacking in proper development, and leave a lot of power on the table. After our mods, this engine kit runs incredible!

The RM125 is an awesome machine, with a sweet chassis, and excellent suspension platform. It also has the best base cylinder design for making good Horsepower, as proven in the GP's with a 3 port exhaust. With correct modernization, and the boost in CC's, this motor RIPS. 250f's dont get run over, please!

The KTM 300 is one heck of an engine even in stock form. Sure it's a little more mild and tame than the 250sx, but after our EXTENSIVE mods, it's amazing. We port the cylinder extensively, improving transfer use and exhaust port design, but then we go one step further. The KTM powervalve design is incredibly effective, but after our port modifications, the pieces require exhaustive reshaping to make most use of the porting. All said, this engine flat out HAULS! Includes cylinder head modifications to your fuel usage.

Our four stroke porting is derived from extensive hours on the flow bench with each particular engine. Every head leaves with the proper cross sectional area's, proper shape, and flow numbers necessary to put you out front of the pack. This package includes our head rebuild package as well.

Send in your transmission complete with shift forks, shift drum, and shift shafts, and get it back with isotropic superfinshing and a special coating! Shift quality and friction improvements are impressive!