V-twin
1970 Triumph Daytona
1970 Triumph Daytona 500 1970 TRIUMPH DAYTONA – WHAT’S IN A NAME? Triumph derived the name of this bike from Buddy Elmore’s win at the 1966 Daytona 200 at Daytona Beach FL riding a Triumph T100T Tiger 500 twin. It was Triumph’s first-ever Daytona victory, with an average speed of 96.6 mph. By 1967, it …
1963 BSA Gold Star Spitfire Scrambler
Check out these BSA BOOKS BSA Motorcycles: The Final Evolution The BSA Gold Star: Motorcycle History Illustrated Bsa Buyer’s Guide (Motorbooks International Illustrated Buyer’s Guide) Bsa Twin Restoration BSA Unit Singles: The Complete Story including the Triumph Derivatives Bsa Motor Cycles: Since 1950 (British Motor cycles since 1950) BSA Unit Twins BSA 500 & 650 …
1979 Triumph Bonneville Special
I’m 52 years old, and I’ve been riding since I was 16. I bought the Triumph Bonneville Special brand new in 1979 at Brooks Cyclery, in San Jose, CA. It has just a little over 24,000 original miles. It’s 99% original. I had to change the fuel petcocks because the originals were made of teflon …
1955 BSA A7
1955 BSA A7 Pre-Unit 500 Twin 1955 BSA A7 BACKGROUND The 500cc A7 was BSA’s first vertical twin and marked its entry into that very lucrative market, started by the Triumph Speed Twin just prior to the war. At war’s end, virtually every British motorcycle manufacturer fielded their own vertical twin, usually starting out at …
1963 Triumph Thunderbird
1963 Triumph Thunderbird 1963 TRIUMPH THUNDERBIRD GOES UNIT CONSTRUCTION Along with the rest of the Triumph 650 line, the 1963 6T Thunderbird converted over to Triumph’s incredible new unit-construction powerplant, frame and cycle gear. It was a major transition, with nearly every component replaced. But what a change! Unit Construction incorporated the engine, the primary …
1951 Triumph Speed Twin
1951 Triumph Speed Twin 1951 TRIUMPH SPEED TWIN BACKGROUND The Triumph Speed Twin was the world’s first ‘modern’ vertical twin, when it was introduced in 1937 as a 1938 model. Designed by Edward Turner (who also designed the Ariel Square Four), the 500cc 5T Speed Twin was a revelation at the time. Pretty much everyone …
1955 Triumph Thunderbird
1955 Triumph Thunderbird ABOVE: The 1955 Triumph Thunderbird 6T is very similar to this 1956 Triumph Thunderbird. They share essentially the same frame, suspension, cycle gear and body work. Only paint colors & minor trim differences vary in the general appearance. Although many mechanical changes were made on an ongoing basis on all Triumph Motorcycles, …
1953 Triumph TR5 Trophy
1953 Triumph TR5 Trophy 1953 TRIUMPH TR5 TROPHY BACKGROUND The Triumph TR5 Trophy was produced from 1949 through 1958. It was based on the 500cc 5T Speed Twin, but modified for off-road use. The TR5 Trophy was originally intended as a trials bike, with high side-exhaust, high ground clearance and excellent handling (for the day). …
1968 BSA A65
1968 BSA A65 1968 BSA A65 Spitfire Royal Star ABOVE: Starting with the 1968 BSA A65, the Spitfire Royal Star joined the lineup, as BSA’s premium offering, at least until the arrival of the Rocket 3 a year later. 1968 BSA A65 Firebird Scrambler BSA’S DESERT SLED The A65 Firebird Scrambler was intended as a …
1948 Triumph Speed Twin
1948 Triumph Speed Twin 1948 TRIUMPH SPEED TWIN BACKGROUND In a few short years, the 5T Speed Twin went from being one of the world’s premium performance motorcycles to be Triumph’s entry-level twin. It had been surpassed by the T100 Tiger with its higher compression and hotter cams. And soon it would be bumped down …
1964 BSA A65
1964 BSA A65 NEW MODELS The 1964 BSA A65 was, of course, the third model year of the new unit construction BSA twins, the 500cc A50, and the 650cc A65, which had replaced the very successful pre-unit A7 (500) & A10 (650) in 1962. BSA was very conservative in the new machine’s configuration, as was …
1951 Vincent Rapide
1951 Vincent Rapide Series B 1951 VINCENT RAPIDE BACKGROUND Vincent built its reputation on it’s robust 499cc Comet single. Prior to the war, they figured out that if they doubled it, they could create a 998cc V-twin and the series A Vincent Rapide was born. Few were built prior to World War 2, which curtailed …
1957 BSA A10
1957 BSA A10 Pre-Unit 650 Twin 1957 BSA A10 BACKGROUND BSA’s A10 was the 650 version in it’s twin cylinder heavyweight line. The 500cc version was called the A7. Following Triumph‘s success with its seminal 500 Speed Twin, after the war, BSA and most of the rest of the British motorcycle industry followed with their …
1955 Vincent Black Prince
1955 Vincent Black Prince 1955 VINCENT BLACK PRINCE BACKGROUND By the early 1950s, Vincent the company was struggling. Founder Phil Vincent, always the innovator, the risk-taker and creative genius, had been steadily improving the Vincent line through several successive ‘series’. The Series C, 1951-1953, had failed to spark much-needed sales, so for the Series D, …
1966 BSA A65
1966 BSA A65 1966 BSA A65 Spitfire Special 1966 BSA A65 SPITFIRE SPECIAL This was the hot rod version of the A65, just behind the A65 Lightning. Like the Lightning, the Spitfire had twin Amal carbs (Amal Monoblocs would be standard for 1966; Amal Concentrics didn’t arrive until 1967.) A65 MECHANICALS The unit construction 650 …
1954 Vincent Black Shadow
1954 VINCENT BLACK SHADOW-ONE OF THE LAST The Vincent Motorcycle Co. closed its doors in 1955, so this 1954-model was built one year before the end. Vincent was a low-volume producer of high-quality motorcycles, and high-priced for the time. From the end of WWII until their demise in 1955, they barely produced 11,000 bikes total, …
1952 Vincent Black Shadow
1952 VINCENT BLACK SHADOW BACKGROUND Brilliantly designed by doubling up the 499cc Vincent Comet single-cylinder engine into a 50-degree V-twin, the Vincent Black Shadow was introduced in 1949. It followed on the heals of the Vincent Rapide, which was more of a touring bike. The buying public wanted more power, more “sport” and so the …
1953 Vincent Black Shadow
1953 VINCENT BLACK SHADOW BACKGROUND Brilliantly designed by doubling up the 499cc Vincent Comet single-cylinder engine into a 50-degree V-twin, the Vincent Black Shadow was introduced in 1949. It followed on the heals of the Vincent Rapide, which was more of a touring bike. The buying public wanted more power, more “sport” and so the …
1950 Vincent Black Shadow
1950 VINCENT BLACK SHADOW BACKGROUND Brilliantly designed by doubling up the 499cc Vincent Comet single-cylinder engine into a 50-degree V-twin, the Vincent Black Shadow was introduced in 1949. It followed on the heals of the Vincent Rapide, which was more of a touring bike. The buying public wanted more power, more “sport” and so the …
Triumph Daytona
TRIUMPH DAYTONA IS HOT The Triumph Daytona is essentially the high-performance version of the T100C Trophy 500 twin. Fitted with a new alloy cylinder head mounting two Amal Monobloc carubretors ‘Bonneville-style’, it also had higher compression and hotter cams. The increased the size of the intake valves, and found that they intake and exhaust valves …
BSA A65
BSA A65: THE MOVE TO UNIT CONSTRUCTION The BSA A65-A50 twins, the A65 being a 650 twin & it’s smaller sister-bike the BSA A10 500 twin, were the natural result of the trend, then sweeping the British motorcycle industry, to unitize engine construction. Prior, most engine packages were made up of separate crankcase, primary case …
Vincent Rapide
VINCENT RAPIDE BACKGROUND Vincent head engineer Phil Irving was working on some tracings of the firm’s 499cc single cylinder engine in 1936. As things got moved around, two of the tracings lined up roughly in the shape of a V-twin. With a little cajoling, he quickly lined it up enough to see that it would …
Triumph Speed Twin
TRIUMPH SPEED TWIN CHANGES THE WORLD! From their earliest inception through the 1930s, most classic British motorcycles were single-cylinder designs with a few V-twins thrown in for sidecar duty. But the problem with both these configurations is vibration and a lot of it. As bikes grew in displacement and power output and the engine speed …
1968 Egli-Vincent
1968 Egli-Vincent 1968 EGLI-VINCENT BACKGROUND Swiss racer/engineer Fritz Egli designed and built custom frame kits for the legendary Vincent 998cc V-twin engine. He built around 100 frames from 1967 to 1972, with the intent of modernizing the iconic Vincent Black Shadow, which fell out of production in 1955. 1968 EGLI-VINCENT DESIGN Every Egli-Vincent is unique, …
1970 Egli-Vincent
1970 Egli-Vincent 1970 EGLI-VINCENT BACKGROUND Swiss racer/engineer Fritz Egli designed and built custom frame kits for the legendary Vincent 998cc V-twin engine. He built around 100 frames from 1967 to 1972, with the intent of modernizing the iconic Vincent Black Shadow, which fell out of production in 1955. Each frame was hand-built to a high …
2009 Triumph Bonneville 50th Anniversary
2009 Triumph Bonneville 50th Anniversary 2009 TRIUMPH BONNEVILLE 50th ANNIVERSARY The Triumph Bonneville has been with us since 1959. That classic Bonnie evolved completely in 1963 with its conversion to unit construction. These were the Golden Years for the Triumph Bonneville, with record sales, blistering performance for the day, and serious street cred. Just as …
2009 Triumph Bonneville 50th Anniversary
2009 Triumph Bonneville 50th Anniversary 2009 TRIUMPH BONNEVILLE 50th ANNIVERSARY The Triumph Bonneville has been with us since 1959. That classic Bonnie evolved completely in 1963 with its conversion to unit construction. These were the Golden Years for the Triumph Bonneville, with record sales, blistering performance for the day, and serious street cred. Just …
1959 BSA A10
1959 BSA A10 Pre-Unit 650 Twin 1959 BSA A10 Rocket 1959 BSA A10 ROCKET By 1959, both of BSA‘s big non-unit twins, the 500cc A7 and the 650 cc A10 had been in production for a decade or more and had been the recipients of constant and continuous improvement. This would break and they’d make …
2012 Triumph Bonneville
A WORK IN PROGRESS In our efforts to complete our online index, and make this the world’s greatest website about classic British motorcycles, we’re building pages as fast as we can. The first thing we add are the pictures. Then come the specifications and then the history. So, if you see a page that just …
1954 Vincent Rapide
1954 Vincent Rapide Series C 1954 VINCENT RAPIDE-NEARING THE END Vincent built its reputation on it’s robust 499cc Comet single. Prior to the war, they figured out that if they doubled it, they could create a 998cc V-twin and the series A Vincent Rapide was born. Few were built prior to World War 2, which …
1955 Vincent Rapide
1955 Vincent Rapide Series D 1955 VINCENT RAPIDE-LAST OF THE LINE Vincent built its reputation on it’s robust 499cc Comet single. Prior to the war, they figured out that if they doubled it, they could create a 998cc V-twin and the series A Vincent Rapide was born. Few were built prior to World War …
1941 Harley-Davidson WLA
1941 HARLEY-DAVIDSON WLA – WHAT’S IN A NAME? The nomenclature “WLA” stands for something, as you probably suspected. The “W” signifies the ‘family’ of motorcycles within the Harley family tree. The W-series was their 45 cubic-inch flathead (side valve) single (only one seat) that was their entry-level V-twin in the civilian market. It had superseded …
1951 Vincent Black Shadow
1951 Vincent Black Shadow 1951 VINCENT BLACK SHADOW BACKGROUND Brilliantly designed by doubling up the 499cc Vincent Comet single-cylinder engine into a 50-degree V-twin, the Vincent Black Shadow was introduced in 1949. It followed on the heals of the Vincent Rapide, which was more of a touring bike. The buying public wanted more power, more …
1956 Triumph Speed Twin
1956 Triumph Speed Twin 1956 TRIUMPH SPEED TWIN RELEGATED TO THE BACK SEAT The 1938 Triumph Speed Twin was the first vertical twin to hit the market, just prior to WWII, and it changed everything. Almost the entire British motorcycle industry rushed to copy their success as soon as the war ended. At that moment …
1963 BSA A10
1963 BSA A10 Pre-Unit 650 Twin 1963 BSA A10 SUPER ROCKET 1963 BSA A10 SUPER ROCKET The Super Rocket was launched in 1957 with the introduction of a new alloy cylinder head and the addition of an Amal TT carburetor. In 1961 a new “357” high-lift racing cam was added. 1963 was the final year …
1942 Harley-Davidson WLA
1942 HARLEY-DAVIDSON WLA – WHAT’S IN A NAME? The nomenclature “WLA” stands for something, as you probably suspected. The “W” signifies the ‘family’ of motorcycles within the Harley family tree. The W-series was their 45 cubic-inch flathead (side valve) single (only one seat) that was their entry-level V-twin in the civilian market. It had superseded …
1959 Ariel Huntmaster
1959 Ariel Huntmaster 1959 AREIL HUNTMASTER BACKGROUND Ariel was owned by the Sangster family, failed a few times, then ended up in the hands of young Jack Sangster. Ariel was his entry into the British motorcycle industry, something that would have profound effects on it. He did so well selling single-cylinder Red Hunters, that he …
1970 Norton Mercury
1970 Norton Mercury 1970 NORTON MERCURY BACKGROUND The Norton Mercury-series ran from 1968 to 1970 and represents the last model in the Dominator family. With Featherbed Frame production having ended in 1968 with the death of the Dominator 650SS and Atlas 750, and the launch of the new Commando. Production records indicate that all Mercury’s …
1971 Triumph T100R Daytona
1971 Triumph T100R Daytona 1971 TRIUMPH T100R DAYTONA BACKGROUND The Daytona became Triumph’s top-of-the-line 500 twin. The “Daytona” name came from Triumph’s 500cc racing successes at Daytona in 1966 and again in 1967. The first use of the name on a production bike was for the 1966 model year. Like it’s big brother, the 650 …
1959 Triumph Thunderbird
1959 Triumph Thunderbird ABOVE: This 1959 Triumph Thunderbird has more than a healthy amount of patina. In fact, if it wasn’t all in one piece, it might be a basket case. Sorry I couldn’t do better on a photo, but it was the only one I could find that I had the rights to use. …
