A Tribsa, [1] was a custom built café racer or off-road motorcycle of the 1960s and 1970s. A Tribsa comprises a Triumph parallel twin engine installed in BSA motorcycle frame. The purpose was to combine the best elements of each marque to give a superior bike to either.

Ridden by Arthur Lampkin in the 1966 International Six Days Trial, its one and only event, this slightly uneasy alliance between industry giants Triumph and BSA resulted in an ISDT Gold medal winner. Andy Westlake takes up the story…

A thorough mechanical overhaul and top-end engine rebuild make this a very special and stylish TriBSA 750cc twin! Constructed from a 1955 BSA Shooting Star frame and a 1953 Thunderbird engine (dating certificates on file) this machine has had twice what we're asking spent on it (not unusual for specials) and it sho ...

2013年11月1日 · Tritons might have been the archetypal café racers, but the combination of an easily tuned Triumph engine in a strong and reliable BSA frame had nearly as much kudos, and it also had the reflected glamour of success in off-road racing, where it had formed the basis of the original Rickman Métisse.

2009年10月17日 · In the UK, this bike—nicknamed The Bitch—is something of a legend. Probably because it’s been around a long time and it looks good. And maybe because it also contains bits from nearly every iconic post-war British motorcycle maker. Steve ‘Swede’ Clark built his TriBSA in 1968, using a BSA frame and a hotted-up Triumph engine. Why?

2020年6月29日 · When it was launched in 1913 the idea behind the event was to showcase what ordinary, or lightly modified machines could do and as such our home industry embraced it.

2020年3月26日 · These photos were taken two months in on my latest project, to build a TriBSA from scratch. The frame is a 1956 A7 S/S, the tank is a Manx Norton, cut and welded to fit the BSA frame. For the engine I sourced and purchased 85 parts and built what you see here.

The Tribsa was a modified Cafe racer motorcycle of the 1960s-1970s, the name coming from a contraction of Triumph and BSA (the Birmingham Small Arms Company) - the two brands of motorcycle combined.

2012年1月5日 · The biggest problem building a Tribsa is getting everything in the right position. If you are using a BSA chaincase, that will drive the position of the engine and trans in the frame. Use the rear mounting lug on the inner chaincase and the corresponding hole in the swing arm mounting flange as your first datum.

Tribsa was a modified cafe racer of the 1960s and 70s. The name came was a contraction of Triumph and BSA (the Birmingham Small Arms Company) - the two brands of motorcycle combined. The intention was to combine the best elements of …