VELOCETTE KTT BACKGROUND
Velocette built the KTT expressly for racing, hence the “KTT” designation. “K” for Kammer, which is German for ‘cam’, which indicated an Overhead Cam (OHC) in Velocette’s parlance. The “TT” differentiated it from the other Velos in the K-series, TT denoting its purely racing intent. They were essentially factor racers which were sold to the public, which would later be known as ‘production racers’. Velocette, always the innovator, broke important ground with the KTT. It was both the first bike to have a positive-stop foot shifted gearbox, and it was the first to utilize a rear swing arm with 2 separate shock absorbers (dampers). Both features greatly improved the overall racing performance of the Velocette KTT. Most of their competition was still hand-shifting and riding on rigid frames. The 350 single was launched in 1929 and ran through the 1949 model year.
Velocette KTT YEAR-BY-YEAR
1929 Velocette KTT
348cc SOHC air-cooled single
The introductory year for Velo’s ground-breaking OHC 350 single.
1933 Velocette KTT
348cc SOHC air-cooled single
1935 Velocette KTT
348cc SOHC air-cooled single
1938 Velocette KTT
348cc SOHC air-cooled single
1949 Velocette KTT
348cc SOHC air-cooled single
Final year for the KTT. Velo opts for cheaper OHV designs, the OHC motors were just too expensive to build.
Check out these VELOCETTE BOOKS
BOOK OF THE VELOCETTE ALL SINGLES & TWINS 1925-1970
Velocette: Production Motorcycles (Crowood Motoclassics)
Velocette Motorcycles – MSS to Thruxton: New Third Edition
The Velocette Saga: The Story of a Great Motorcycle
Velocette 350 & 500 Singles: All 350 & 500cc models 1946-1970 (Essential Buyer’s Guide)
Always in the Picture: History of the Velocette Motorcycle
Velocette: The Racing Story (Crowood Motoclassics)
Velocette (Illustrated Motor Cycle Legends)
Velocette – Technical Excellence Exemplified
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The German for “cam”is “Nocken”. “Kammer” means “chamber” or “room”. The “K” model designation is more likely a continuation of the model sequence, which had reached “H” in the two stroke range. “I” and”J” were omitted, possibly because they can be confused with the numeral one.