The isolastic frame, designated by Norton as GlideRide,[2] used a system of engine-to-frame mountings incorporating rubber bushes to isolate the vibration of the vertical twin engine from the frame and rider. The isolastic frame was developed for use with the Commando inclined engine, whilst the Featherbed frame continued in production for the Mercury with a softer-specification 650 cc vertical-engine until 1970.[3][4][5]
- ^ Cite error: The named reference
Mechanics 1973was invoked but never defined (see the help page). - ^ Grand Prix, 1968 soft-back book, p.34, full-page B&W factory advert, a Motor Cycle News special publication. "Suddenly we've started a revolution on two wheels - It's called the COMMANDO 750. Inclined engine, better cooling. GlideRide frame—goodbye vibration" Accessed 1 January 2016
- ^ Motorcycle Mechanics, May 1969, p.63 SHOWTIME. Show scene '69."Last of the traditional Nortons is the 647 cc Mercury. This machine has the Commando type cylinder head and single carburettor, producing 47 bhp. A rev counter and stainless steel mudguards are available as extras". Accessed 3 January 2016
- ^ Cite error: The named reference
MCS April 69was invoked but never defined (see the help page). - ^ Woollett 2004[verification needed]