In this weeks Two-Stroke Tuesday brought to you by Boyesen we give you an exclusive sneak peek at our Yamaha YZ125 Long-rod project with C4MX and Insideline Connect. Enjoy the sights and sounds of our favorite two-stroke projects in Two-Stroke Theater and Two-Stroke Hardware is packed full of necessities . Die hard Suzuki fans won’t want to miss the RM250 build link at the end of this post ! Be sure to scroll all the way down.

DSC_1134Yes those are Ohlins forks, a long-rod and Cerakoted hubs by Dubya USA on a 2017 Yamaha YZ125 ! This little ripper is full of surprises thanks to the crew at C4MX.

DSC_1104There is all kinds of aftermarket bolt-on performance items from Hinson, FMF, Torc1, Boyesen and a host of other companies.


The connection rod is slightly longer than stock 2017 specs but its actually out of an earlier YZ125 model. The piston is a different story. It’s full custom specifications made specifically for this kit. This kit does not require the use of cylinder spacers. For more info on engine work go to or call (661)294-9020


Dubya USA Cerakoted the hubs a dark grey laced up to a set of black Dubya rims. The tires are IRC IXO7S and they are made for intermediate to hard terrain . Galfer added stopping power with their oversized from rotor kit.

DSC_1134ZLT topped off the build with a set of custom graphics. Full test will be in the June 2017 issue.






Golden Spectro Two-Cycle Pre-Mix Blend is the two-cycle engine lubricant that built our reputation. Probably the winningest oil out there. Because we significantly reduce excessive solvents (present in most two-cycle blends), running Golden Spectro® Two-Cycle Pre-Mix Blend at leaner ratios provides a higher level of detonation protection, stops plug fouling and smoking. Use according to motorcycle manufacturers’ recommendations, or at 50:1; this product exceeds API TC test requirements. Not for use in oil injection systems.

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In line with the ongoing trend for riders to customize machines rather than simply replace parts, the new Vee-Rotors™ from EBC Brakes offer an exciting new lightweight rotor program with an exciting range of colour options. The standard offering of hub colour is BLACK.

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Two-stroke Piston Kits

As the OE supplier of two-stroke pistons to KTM, Vertex pistons has an outstanding reputation for quality and performance. Each gravity cast piston is created with only premium aluminum alloys utilizing an 12-21% silicon content.

The silicon content in Vertex pistons is crucial to the quality of the piston. Silicon is critical in decreasing thermal expansion which, when an engine reaches normal operating temperatures, can change the geometry of the piston. Controlling this expansion means that a Vertex piston can be run at tighter tolerances for more power, less noise and a longer lifespan of the piston. Plus, the silicon content decreases wear on the piston skirt which also aids in the life of the piston.

In addition to the silicon, each Vertex piston utilizes a unique Molybdenum Disulphide (MOS2) coating which aids in the break-in process and reduces overall wear.

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Suzuki faithful you gotta see this RM250 build !!! Click on the image to see the complete story NOW !


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