Triumph, BMW, & Kawasaki Sales Spares & Repairs.
Established for over 40 years and run by expert motorcyclists.
Fully authorised workshop.
Picture of Butterworth's Swing Valve motor and now being installed in a featherbed frame.
The exhaust valve is conventional and the swing inlet (shaded)
Just swings out of the way! WOW! There are many advantages to this design.
See how many you can work out. Answers next month!