Posts in category

600 – 1000cc


1959 AJS MODEL 31 BACKGROUND AJS and sister-brand Matchless were late to the vertical twin party. Triumph started it all with the 1938 Speed Twin, the world’s first ‘modern’ vertical twin (aka: parallel twin). It took the world by storm, and suddenly every other British brand had to have one of their own. Alas, World …

ROYAL ENFIELD INTERCEPTOR BACKGROUND Royal Enfield hopped up its 692cc Constellation and created a new model, the 700 Interceptor in 1960, for sale in the US and Canada markets only (on England). They’d just lost their contract to rebadge Constellations with Indian Motorcycle regalia then selling them in the US (or trying) as the Indian …

MY 1979 TRIUMPH T140D BONNEVILLE SPECIAL I own a ’79 T140D myself. It’s pictured above, on display at the Quail Motorcycle Gathering in Carmel CA in 2011. The day after this show I rode it in the Quail Ride, which took us through the hills around Carmel. It happened to be my birthday, and what …

Sweet 1970 Triumph TR6 Trophy, with high pipes (on the other side). THE ORIGINS OF THE TR6 The story of the Triumph TR6 starts, as does virtually every British vertical twin, with the seminal 1938 Triumph Speed Twin. This 500cc cast iron twin started it all & after WWII when civilian production was resumed, it …

1961 AJS MODEL 31 BACKGROUND AJS and sister-brand Matchless were late to the vertical twin party. Triumph started it all with the 1938 Speed Twin, the world’s first ‘modern’ vertical twin (aka: parallel twin). It took the world by storm, and suddenly every other British brand had to have one of their own. Alas, World …

Hinkley Triumph Motorcycles Hinkley Triumph Motorcycles have a rich and interesting history, despite being a fairly young company. The classic Triumph brand led the performance motorcycle market from the end of World War 2 until the late 1960s, when the Japanese absolutely conquered the market. Almost the entire British motorcycle industry collapsed before a relentless …

TANGLED ROOTS The BSA Rocket 3 is something of an anomaly in the history of BSA Motorcycles. Designed by Triumph, (BSA owned Triumph) in their Meriden Plant as the Triumph T150 Trident 750 triple, , and morphed into the BSA A65 Rocket 3, both were produced in BSA’s Small Heath factory. ABOVE: The 1969 BSA …

1977 Triumph Bonneville Silver Jubilee US-Market Version ABOVE & BELOW: The US-spec version of the 1977 Triumph Bonneville Silver Jubilee had a typical US-style teardrop tank. (Pictures courtesy of MidAmerica Auctions.) CELEBRATING A QUEEN Elizabeth II was crowned Queen of England in 1952. 1977 was the 25th, or Silver Anniversary of her coronation and the …

1974 Triumph Trident T150 1974 TRIUMPH TRIDENT MOSTLY CARRIES OVER The 1974 Trident was essentially much the same as the 1973, other than paint schemes and minor details. Trouble was brewing at Triumph that saw the workers union shut down their Meriden plant, where their best-selling Bonneville and all other twins were produced. This crippled …

1971 Norton Commando 1971 Norton Commando ROADSTER 4 NEW MODELS The 1971 Norton Commando line grew from 2 models in 1968 (Fastback & S), to 3 models at the beginning of the 1969 model year (Fastback, S & R), then dropped back down to 2 models by the end of 1969 (Fastback & R). Now …

2014 Norton Commando 961 2014 NORTON COMMANDO 961 BACKGROUND When the classic Commando went out of production in 1975, a battle over the rights to the name ensued. Ultimately UK business man Stuart Garner, who already owned Norton Racing Ltd acquired the rights to the Norton Commando brand. His new company, Norton Motorcycles Ltd, he …

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, …

1974 Norton Commando A 1974 NORTON COMMANDO FOR EVERY TASTE The Commando was available in a variety of configurations, all cosmetic packages, as they were all built on identical Commando engines, frames and running gear. While the first Commando was the Fastback, by 1974, the standard Norton Commando was the Roadster, which is the most …

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 …

1962 Norton Dominator 650SS 1962 NORTON DOMINATOR 650SS BACKGROUND The story starts not with a Norton, but with the 1938 Triumph 500 Speed Twin, the world’s first “modern” vertical twin. The rest of the British motorcycle industry went nuts and rushed to field their own 500 twins. But WWII got in the way, putting things …

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 …

1957 Ariel Square Four 1957 ARIEL SQUARE FOUR – GETTING LONG IN THE TOOTH Alas, the world was changing, and with it the motorcycle market. The Ariel Square 4 designed decades before, was keyed to another age, one where acceleration and all-out top speed weren’t as important as smoothness and reliability. Hence the Square Four …

1965 Triumph Thunderbird 1965 TRIUMPH THUNDERBIRD AS A COMMUTER? When the 6T Thunderbird launched in 1950, it was the first Triumph 650 (up from the 500cc 5T Speed Twin, and was the largest British-made parallel twin at the time. As such, it was a true hot rod in its day. However, the rest of the …

1950 Ariel Square Four 1950 ARIEL SQUARE FOUR BACKGROUND The original Ariel Square Four was created by legendary engine designer, Edward Turner in 1930. In its original form, it displaced 500cc and had four cylinders arranged in a ‘square’. It was unusual in that it had two crankshafts, one behind the other, each with two …

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 …

1962 Triumph 650 Thunderbird 1962 TRIUMPH 650 THUNDERBIRD-A COMMUTER BIKE The Thunderbird was introduced in 1950 it was Triumph’s first 650 twin, and instantly became its fastest bike and its best-seller. But the introduction of the T110 Tiger, a hotter version of the 650 twin, in 1954 the T-Bird lost it’s top-shelf status. It happened …

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 …

1970 BSA A65 1970 BSA A65 Firebird Scrambler 1970 BSA A65 FIREBIRD SCRAMBLER The term “scrambler” was the word used back then for a bike that might be called a “dual-sport” bike today. In other words, on that can be ridden on the highway, and yet handle itself off-road. These bikes were great desert racing …

1948 Ariel Square Four 1948 ARIEL SQUARE FOUR BACKGROUND The Ariel Square Four engine was originally designed in 1928 by Edward Turner, the man who later came up with the vertical twin for Triumph. In original form, it started out as a 500cc and was quickly expanded to 601cc. The Square Four was essentially two …

1967 Norton Atlas 750 1967 NORTON ATLAS HISTORY The story starts not with a Norton at all, but with the 1938 Triumph 500 Speed Twin, the world’s first “modern” vertical twin. The rest of the British motorcycle industry went nuts and rushed to field their own 500 twins. But WWII got in the way, putting …

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 …

1962 BSA A10 Pre-Unit 650 Twin 1962 BSA A10 – NEARING END OF NON-UNIT CONSTRUCTION In 1962 BSA was in the middle of a major retooling to begin production of the new A50 (500) and A65 (650) unit-construction twins, that were meant to replace the highly successful non-unit twins the 500cc A7 and the 650cc …

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 …

  BEST EVER The 1970 Triumph Bonneville T120 was not only the high water mark in Triumph 650 development, and the year that most people favor as ‘the best Triumph Bonneville ever built’, it was also the last year before the dreaded Oil-in-Frame bikes arrived, and all the problems with cash-strapped owner BSA began to …

1956 Ariel Square Four 1956 ARIEL SQUARE FOUR – NEW & IMPROVED The Square Four went through a major revision in 1953, with a new cylinder head and manifolds, prompting a new sub-model designation, Mark II, which ran from 1953 through Ariel’s final year, 1959. Prior to 1953, both cylinders on each side shared just …

NEW MODEL DESIGNATIONS Starting with the 1961 Triumph Bonneville, the T120 model designation was followed by either an “R” for Road models with low pipes, or a “C” for the Street Scrambler with high pipes. Changes in the new bike were minimal, yet the steady process of development and improvement never abated. Of course, again …

1971 BSA A65 BIG CHANGES FOR THE 1971 BSA A65 For the 1971 model year, BSA and Triumph changed virtually every item on their big 650 twins, with the exception of the engines. A new frame had been designed by BSA’s hopelessly misguided Umberslade Hall tech center. Instead of focusing their limited resources on fixing …

1965 Royal Enfield Interceptor 1965 ROYAL ENFIELD INTERCEPTOR BACKGROUND Royal Enfield hopped up its 692cc Constellation and created a new model, the 700 Interceptor in 1960, for sale in the US and Canada markets only (on England). They’d just lost their contract to rebadge Constellations with Indian Motorcycle regalia then selling them in the US …

1959 Ariel Square Four 1959 ARIEL SQUARE FOUR- IT’S FINAL YEAR Alas, the world was changing, and with it the motorcycle market. The Ariel Square Four designed decades before, was keyed to another age, one where acceleration and all-out top speed weren’t as important as smoothness and reliability. Hence the Square Four engine was built …

1970 BSA A65 1970 BSA A65 Firebird Scrambler 1970 BSA A65 FIREBIRD SCRAMBLER The term “scrambler” was the word used back then for a bike that might be called a “dual-sport” bike today. In other words, on that can be ridden on the highway, and yet handle itself off-road. These bikes were great desert racing …

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 …

SLOW STEADY REFINEMENT The 1965 Triumph Bonneville T120 650 was again more or less a carry-over from 1964, which itself was a carry-over from 1963. Changes were minor and evolutionary in nature, aimed at refinement, improving reliability, performance and ease of production. Model designations were also carryovers: T120R was the road machine with down pipes; …

ABOVE: 1980 Triumph Bonneville T140E in Steel Gray & Black. SLOW SALES HURT CO-OP By 1980, what was left of the “Triumph magic” had evaporated. Large numbers of 1979 Triumph motorcycles were still sitting unsold in dealer showrooms & factory warehouses. For the first time since the end of WWII, the home market (Britain) was …

ABOVE & BELOW: This 1978 Triumph Bonneville is a T140V, which still has the Delta-style head with splayed intake ports & Amal Concentrics. Later 1978 Bonnevilles were T140E’s, with parallel intake ports & MkII carbs. This color scheme was popular in 1978. A sign of the times: earthtones were in, even for motorcycles seats. SMOG …

1970 Norton Commando ABOVE: The 1970 Norton Commando came in a new guise: The Norton Commando Roadster, or Type R. A new tank & seat, conventional rear fender & those voluptuous upswept pipes! Establishes the ‘Commando look’ in the public mindset. NEW ROADSTER The 1970 Norton Commando line grew to three models, then shrunk back …