Triumph T100 Grand Prix for sale at Oley AMCA swap meet, 2012.

Triumph motorcycles was reluctant to enter the world of road racing - it just never interested Ed Turner. However, right after the war, a surplus of generator motors Triumph built for the Royal Air Force turned out to have the key ingredient to solving the Speed Twins over heating problem when highly tuned - a square all-alloy barrel and head. The first T100 to employ the generator top end was entered in the manx Grand Prix and took first place - raced by Ernie Lyons and built by Freddie Clarke. 


Triumph released a version of the bike for the years leading up to 1950. The Grand Prix (named after the race it won on the Isle of Man) had more success but when 3 machines were entered in the Senior TT, they failed to finish. Ed Turner's racing enthusiasm wained and the bike was discontinued in 1950 when a racing kit was added to anyone who wanted to build their own competition machine. 

Dual carbs, oil filter, sprung hub tach driven from generator gear.

Square alloy cylinder first used in gasoline powered generators during WWII

Open primary, BTH competition magneto, remote float off the GP carbs

Racing tach, racing bars and silver painted gas tank.