Upcoming Events

Jul
1
Sun
all-day 12th World’s Smallest Triple Meet
12th World’s Smallest Triple Meet
Jul 1 all-day
The 12th WSTM is starting at 12.06 o’ clock from the meeting point cafe Ruskopirtti, in Otalampi and address is Vanha Porintie 661, 03300 Otalampi . About 150 miles ride on interesting small roads and interesting places.[...]
all-day Crich Tramway Museum Classic Bik...
Crich Tramway Museum Classic Bik...
Jul 1 all-day
Crich Tramway Museum Classic Bike Show
  Classic Motorcycle Event Sun 1st July @ 10:00 am – 5:00 pm This event is being organised in conjunction with the Vincent H.R.D Owners Club and sponsored by Derwent Waste Management, and is for motorcycles built[...]
Jul
7
Sat
all-day ACU National Road Rally
ACU National Road Rally
Jul 7 – Jul 8 all-day
ACU National Road Rally  There are two ways in which you can enter the National Road Rally, either on-line or by post. In order to enter on-line you must have a valid e-mail account and[...]

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The Bikes

The Beginning

Doug Hele and Bert Hopwood had discussed the concept of a three cylinder engine for about two years before the first sketches were drawn in 1963.  The whole point of their thinking was to achieve a level of smooth running not possible with a large capacity twin, whilst retaining the high-speed handling that is compromised by adopting a four cylinder transverse engine.  In 1963, the project was low priority and without backing from the Triumph Managing Director, Edward Turner.  Despite this, the first 750cc three-cylinder prototype was built in the Meriden Experimental Department in 1964.  It was code named P1.

P1

The P1 Prototype, owned by the TR3OC

P1 was rebuilt by the TR3OC in 1997 and now resides in the London Motorcycle Museum.  There is a must-read series of articles on this re-build in the Triple Tales Continued section.

Initial testing of P1 was very promising but there were many issues to overcome e.g. overheating, wet sumping, noisy primary drive (using pinions) etc.  Further development to improve matters resulted in the building of P2 in 1966.  The retirement of Edward Turner and other management changes, plus news from Japan that a four-cylinder 750cc bike was planned, gave the project higher importance and it was decided to continue through to production.

Ogle Design were appointed to style the new machine and presented their designs in 1967.  They received very mixed reviews from design staff, management and the vitally important US distributors.  But the radical new look won through and the BSA Rocket 3 and the Triumph Trident were launched to the world in September 1968.  The era of the Superbike had begun!

Over 33,000 machines were produced until production ceased in 1976.

Model Summary

Click on any bike for more details

 

BSA Rocket Three

Year 1968-72

Production numbers 5,897

Triumph Trident T150

Year 1968-74

Production numbers 19,179

1969-bsa-rocket3 Triumph Trident T150 750 68

 

Triumph Trident T160

Year 1975-77

Production numbers 7,104

Triumph X75 Hurricane

Year 1973

Production numbers 1,048

75T160US X75 Hurricane

 

Racing Triples Specials
alex george silverstone 1 (2) Harrier