Click here should you also need a free workshop manual. Click here for engine and frame numbers to date your vintage British motorcycle. In the Triumph factory introduced and adapted a new numerical part numbering system which would out date the old style "Alpha-Numeric" system. This new system makes old outdated part numbers much easier to bring "Up-To-Date". A very simple process that will give you much better success in finding the part that you are searching for.
Below are some examples. If you run across a part number H53 for example you must convert the "H" to a two digit number. In this case, "H" would be So now you have Part numbers should have a total of 4 digits after the - dash and two digits before the dash.
Since we have you must add two zero's before the Each parts book includes "export" Models A. Triumph Unit Twins where produced from Each parts book includes "Export" Models A. Each parts book includes "export" models A. Each parts book includes most Triumph pre-unit export models. Triumph Trident Triples where produced from This, the most prestigious race of those times, Norton won 10 times before the Second World War, and then every year from to Norton's first proprietary engines were installed in on the Norton Big Four.
It was a single-cylinder engine with a mechanical drive of valves; it and the Norton Big Four continued to be produced with minor changes until the end of the s. The first Norton logo was simple enough - the name Norton was spelled in capital letters. The new logo, which appeared on the cover of the catalog in , was developed by James Lansdowne Norton together with his daughter Ethel. In , sales declined. Firm R.
Norton died in April at the age of 56, but he saw the factory team win the Tourist Trophy in Until , Norton bought gearboxes and clutches from Sturmey-Archer. In , Norton bought the rights to this design and began to produce its own gearboxes.
During the war, Norton motorcycles served in the allied forces - more than thousand cars were produced in those years. Norton Commando Spare Parts List. Norton Motorcycles History.
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