In 1905 Triumph rolls out a motorcycle 100% manufactured in house. It didn't take long before their 4 1/2 hp motorcycle gained popularity. By 1907 they were producin 100 motorcycles a year. In 1908 Jack Marshall wins the TT race on a Triumph. Lots of changes were made in the early years of motorcycles in general. In 1910 Triumph offered 2 models, adding this 499 cc TT model. A man by the name of Albert Catt put 2000 miles in just 6 days on his TT . Triumph was quickly becoming know for their reliability sells 3000 bikes in this year .
Side note: in 1905 and 1906, Norton and BSA also debut their first motorcycles.