Category Archives: Featured
A step by step explanation of how I rebuild simple crankshafts. -Jeff Henise
Achieving a specific tuning goal with pipe design. The goal was to achieve equal or greater power while moving the red-line from ~13,000 RPM to a max of 11,000 RPM. The pipes on the bike kept wanting to pull way past 11000 RPM, and the owner wanted to keep the power below that to preserve crankshaft life, while not loosing race winning power!
Highwayman Bikes is now a official dealer for HPI ignition components.
We offer a high quality, bolt on, low inertia, magneto-CDI racing ignition for the small Honda twin GP200 class road racers! After spending a few years racing GP200 with AHRMA it became apparent that ignition failure was a leading cause of Honda riders missing races. Having had much success adapting HPI ignition components to run on our two stroke racers, we decided to share the wealth and make a reliable, race-quality, easy starting, high revving system for the Honda twins that wouldn’t miss a beat.
I needed chambers for a Kawasaki triple that I was restoring and decided to make my own after being disappointed with what was available for these bikes. The goal was to make exact copies of vintage Denco chambers to ensure good performance and stick with the period look.
This was a project for a friend who needed a custom set of expansion chambers for his Yamaha RZ350. This special RZ350 had been modified with an Aprilia RS250 swingarm. He liked the way Spec II RZ pipes performed so we used them as a model, but also made some innovations. I call this design “RZ350 Spec III.”
Also included in this post are some pipes for a RZ350 motor in an RS250 chassis…
The Kawasaki A7 Avenger 350 cc rotary valve 2-stroke twin is a fun little bike.
I was surprised to find how quick these things are, and do hear they were very progressive for their time!