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Memorable Motorcycle: Triumph TR6

Wednesday, February 12, 2014
The Triumph TR6 is a wonderful machine.
The Triumph TR6 is a wonderful machine.
Motorcycling journalists are, by nature and inclination, promiscuous in terms of bikes. This is why it’s so difficult to answer the question which is frequently pitched to us: “What’s the best bike you have ever ridden?”

Is the Honda Valkyrie I rode from Los Angeles to the Mexican border better than the 1957 Gilera “Four”? How does the Gilera compare with the factory 360 Husqvarna which I tested three days after it had won the World Championship? They’re all different and, in their own ways, wonderful motorcycles.

A better question to ask a journo, and get ready with the oxygen mask and ambulance for this one, is “What bike would you spend your own money on?”

If the shock of the question doesn’t kill them then the answers will be interesting. For sure it won’t be some multi-thousand dollar piece of exotica that the scribes choose but it is far more likely to be a thoroughly practical motorcycle.

Because I have been riding bikes since before Columbus left Spain for a quick sailboat trip round the harbor, I have had the great pleasure of testing many motorcycles of virtually every type – from Grand Prix machines to humble commuters. Even in this cornucopia of two-wheeled delights the Triumph TR6 sticks out like a beacon.

The story of the TR6 is a very American one – and even more specifically a West Coast tale. It was the Americans who pressed Triumph for a bigger capacity machine than their flagship 500s and the Meriden factory was happy to supply the 650cc Thunderbird in 1949.

The Thunderbird was a Harley eater in terms of both power and acceleration but its all-iron engine was designed first, last and middle for the street.

Triumph didn’t race in Grands Prix which Edward Turner, who was Triumph’s autocratic boss, thought were a waste of time and resources. However, they were active in every other form of motorcycle competition. In everything from enduros to the Clubman’s TT in the Isle of Man, Triumph riders relied on the all-alloy 500s which were light and fast.

The problem was that the 500s were underpowered for the West Coast – and particularly for desert racing.

Early TR6s were a bigger version of the 500cc TR5 which was incredibly successful in everything from motocross to enduros and the hugely important Big Bear Hare and Hounds race and the Catalina GP.

TR6s were also fast and with a 100 mph turn of speed, and were ultra-cool on the road too. Arguably the TR6 is the great, great grandparent of the dual sport machines which are so popular today.

The Triumph TR6 engine is simple. Four valves operated by basic push-rods. The separate gearbox is utterly unbreakable as well.
The Triumph TR6 engine is simple. Four valves operated by basic push-rods and the separate gearbox is utterly unbreakable.
So, what makes the TR6 such a wonderful machine? First, there is the power. Triumph claimed 45 horsepower for the 71 x 82mm, single carb Twin which, if not actually honest, was not too far out. Certainly, all over Southern California, Triumph tuners were rolling out machines with well over 40 hp at the back wheel.

Not only was the power impressive for the day but the manner in which it was delivered was fantastic. Peak power was at 6500 rpm but, other than desperate passes, there was never any need to rev the motor this hard. Right from tickover, a TR6 just oozes creamy smooth torque which makes life so easy for the rider.

It does take a bit of skill and knowledge to set the manually adjusted, magneto ignition and the equally manual choke but, with an experienced rider, the TR6 will burst into life first kick, every time. And no, electric starters were only for cars – and girly boys!

The engine was simple too. The four valves were operated by basic push-rods – a system which Triumph had been using successfully for decades. The separate gearbox was utterly unbreakable and the clutch was just as good. Finally, Triumph quality control was the best in the business. Until the Japanese came along, the TR6 was as good as it got in terms of reliability.

From 1960, the frame was strengthened and after this time the chassis was unbreakable.
The designers of the day didn’t have access to computers and CAD/CAM programs but they did know that to make the bikes of the day handle you needed a 55-inch wheelbase, a steering head angle of 63 degrees and 5 ¼ inches of trail.

In this configuration, the TR6 has a wonderfully neutral feel. There is no need for counter steering or shifting body weight. It’s simply a case of asking the bike to do anything from power slides to landing true after a jump and it will obey.

This brings us to the TR6’s most famous moment – if not its most glorious. The Steve McQueen/Bud Ekins jump in the “Great Escape.”

Despite being a competition orientated machine, the TR6 is incredibly easy to ride. It has a low seat height and is light and narrow. The torquey engine is very hard to stall so a novice can instantly learn clutch control. In fact, it was the perfect machine for Bud to teach Steve McQueen the art of motorcycle riding on the fire roads which, in those happy days, began at the rear of Ekins’ North Hollywood shop.

Steve agreed to do the film for John Sturges, who both directed and produced the “Great Escape”, but only with the caveat that there would be some motorcycle action in the movie. He also insisted that Ekins would be hired as a stuntman and motorcycle expert.

Bud told me the story when I spoke with him in his North Hollywood shop: “I’d sort of taught Steve to ride bikes and when he was offered a part in ‘The Great Escape’ he persuaded John Sturges to write a bike chase into the script and into his contract. At the same time Steve insisted that he would only work with me.

“I’d never done film work so when I went for interview I bought a new shirt, tie and a suit – but I needn’t have bothered because Steve picked me up in his ‘D Type’ jag dressed as he always was in Levis and an old T-shirt.

“We went up to Hollywood and I was amazed, and embarrassed, when the Security saw Steve and his Jag and threw back the gates just like in the movies. Steve just took this as normal.

“John Sturges directed the film and was also the producer. He really wanted to keep Steve happy so he took me on for $100 a day, including expenses – which was good money when a new 650 Triumph was $600.

“As for the bikes, it had to be TR6s. We knew the bikes inside out and we knew that they wouldn’t let us down.”


It’s easy to stand back and look at a TR6 and smile at the thought of Ekins and McQueen even thinking about riding a machine which, by modern standards, looks as useful as a Neanderthal stone axe. However, you would be wrong. First, there was nothing better on the market and second, with a skilled rider in the saddle, the bike was surprisingly competent.

Everything about the TR6 made life easy for Bud, as the stunt rider, and John Sturges as the film director. The TR6’s gearbox is sweet and reliable and the clutch bullet, even German bulletproof. At a time when trusting a bike’s reliability was like playing roulette, the Meriden-built Triumphs were the bikes you could always rely on.

The chassis wasn’t as good as the engine but things were not as bad as they first seemed. The chassis was race proven and, for the day, handled beautifully.

The one area which would really frighten us today is the suspension. The TR6s front fork was dire  offering a nominal 6 inches of travel.
The one area which would really frighten us today is the suspension. The TR6's front fork was dire, offering a nominal 6 inches of travel.
Both McQueen and Ekins knew that whatever they demanded of the TR6 in the film – and McQueen got arrested several times for reckless riding when the crew was not filming – the motorcycles would deliver.

Probably the one area which would really frighten us today is the suspension. Triumph’s front fork was dire, offering a nominal 6 inches (150mm) of travel of which only the middle couple of inches really worked. Landing front wheel first, supercross style, meant a guaranteed trip to the hospital!

Things were no better at the rear end with the oil-damped Girling dampers perhaps even worse than the Triumph front forks.

This is why the jump in the “Great Escape” is text book perfect for the era. Bud and motocross star Tim Gibbes designed the dug-out ramp to ensure that the bike took off in a gentle arc, landing on the back wheel after the 65-foot long, 12-foot high jump. Done this way, the Girlings would bottom out, the frame flex and the front wheel would come down to earth controllably. That’s the theory and it was possible, as Ekins showed – but only if you also possessed a man-sized set of cojones!

For my money – and that’s a powerful word for a journalist to use – the TR6 is an all-round better bike than a Bonneville. In real world terms, it’s faster than a Bonnie and handles just as well. A TR6 is also easier to keep in tune.

The best news of all is that TR6s are always the Plain Jane at the party rather than usurping the Bonneville’s position as Prom Queen, but this makes them at least a third cheaper. Note the word “cheaper” – rather than cheap. A nice TR6 is going to take $10,000 out of your bank but, roll of drums in the background, it’s one of a tiny group of classics on which I would spend my own money.

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Boris   February 12, 2014 04:46 PM
There also was a small industry stretching out the Triumph frame for more rake. The desert wasn't so rough then and you wanted all the stability you could get. There was a guy in Santa Monica (Ted something) who would sell you a complete TR6 desert sled, stretched frame and all. Load it, drive out to the desert and ride it.
Aussiebikerdave   February 12, 2014 03:35 PM
What a great bike and I'd love to own one! I'm glad Melling's excellent piece makes mention of Tim Gibbes. It is probably not widely know that Tim was an Australian motocross rider (called 'scrambles' in the day!)who also competed in the International Six Day Trials in Europe in the early sixties where he possibly first meet Steve McQueen who also competed in the ISDT's in that era. Although originally hailing from South Australia, Tim spent most of his adult years in New Zealand where he ran a motorcycle shop in the city of Palmerston North where I was one of his young customers back in 1967/68. Years later after selling the shop and in 'retirement' he ran a business supplying all of the timing equipment and transponders for the motorcycle racing scene in NZ so Tim continued to remain in touch with motorcycle competition throughout the years. I have had the pleasure of remaining in touch with Tim occasionally over the years however I am not sure how he is these days probably being well into his eighties. I remember Tim once telling me that he also did some jumps in the movie although this may have been in the form of some test jumps to assist Bud with the set up for the 'actual' jump that we are so familiar with.