Tag Archives: expansion chambers
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!