Project Description
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Triumph Tiger 500 GP Replica
A rare opportunity to purchase a faithful reproduction of Triumph’s iconic 500 Grand Prix Twin
Essentially developed from Triumph’s Tiger 100, the prototype Grand Prix model debuted in the 1946 Senior Manx Grand Prix, ridden by Ernie Lyons who stormed to victory on a rain soaked course. The production model debuted in 1948 and the Grand Prix was one of the most exclusive Triumph models built, production being restricted to numbers variously quoted between 150 and 200 examples.
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Motorcycle additional information
Cycle components for the new model were similar to the off-the-shelf T100 and featured a rear-sprung hub with 8″ brakes. The T100 engine was much modified, incorporating a lightweight alloy cylinder head and barrel as used in the wartime Triumph generator units. Fuel feed was by twin Amals with a modified inlet manifold. The valve gear was lightened and polished and racing camshafts fitted along with high compression racing pistons. Roller bearings, rather than the standard ball bearings, were employed for the crankshaft and the heavy-duty conrods and bearing caps ran directly on the crank pins. A close ratio box gave that extra performance edge.
Very little is known about this machine prior to the early 2000’s. The information we do have shows a comprehensive engine refurbishment between 2004-2006 with the following equipment:
- Lees Racing Magnesium Crank Cases
- Nourish 500 Crank
- Carrillo Rods
- New Mains & Shells
- Tony Hayward Belt Drive kit
- High compression forged pistons
- BT-H Magneto
- Lightened and polished rockers
- Lightweight valves and race springs
- BHR – VMCC race registration
The bike has been stored since the early 2000’s and we believe it has not been used since the build in the early 2000’s.
It has been recently re-commissioned with new fluids and top end strip and check (as new inside) which backs up the work in the early 2000’s.
It has had a tentative test run and seemed to perform well.
Even though this is a replica it is important to stress how rare finding something like this is, with parts of its engine essentially coming from a WW2 spitfire generator!
If you are interested in this machine viewing is highly recommended (as is listening) bring ear plugs!
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