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RGM Motors Ltd - The UK's Premier Norton Specialist

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Christmas 2020 Opening Times

As we approach the end of this most trying of years we would like to thank all our customers and suppliers for their help and support and wish you all a Happy Christmas and a healthy happy and safe 2021.  We will be shipping orders upto and over the holiday period but closed on the 24th re-open 29th and 30th then closed until Jan 4th. Best wishes from all at RGM

Hi I just bought a low mileage '72 Combat Commando that has factory original engine specifications and am planning some engine mods for improved reliability. I see that you have various lengths of pushrods available. Could you tell me what length pushrods of yours would be best for a standard Combat engine?
Whilst the Combat had a higher cam lift and material removed from the head Norton's did not make a special pushrod for this engine, there are a lot of factors that affect the rocker geometry and I feel the only way to improve upon what you have is to do a dry build and watch it working, setting the rocker adjuster to sweep more or less evenly across the valve tip rather than merely from the center to the edge, or visa versa. We do stock a number of different length pushrods and also things like mushroom tappet adjusters and lash caps, (buckets to sit on the end of the stem thereby lengthening the valve) and we also do slightly shorter valves. Hope this helps.