The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006
Lot 454
The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle
Engine no. T150V GG03006
£ 15,000 - 20,000
US$ 19,000 - 26,000

Amended
Lot Details
The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006 The property of Carl Rosner,c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle Engine no. T150V GG03006
The property of Carl Rosner
c.1990 Triumph Trident 'Rob North' Formula 750 Racing Motorcycle
Engine no. T150V GG03006
Engine no. ME00296

Although up-staged in the showroom by Japanese rivals, the Triumph and BSA 750 triples did more than enough on the racetrack to ensure their place in motorcycling history. BSA-Triumph's Chief Engineer Doug Hele spearheaded engine development throughout 1969 while frame builder Rob North devised a chassis that would stand the test of time like few others. The team narrowly missed victory at the 1970 Daytona 200, its first major event, Gene Romero finishing second on a Triumph. Dick Mann's BSA won at Daytona in 1971 and John Cooper, also BSA-mounted, at Mallory Park's 'Race of the Year', vanquishing the hitherto unbeatable combination of Giacomo Agostini and MV Agusta. Percy Tait and Ray Pickrell had won the 24-hour Bol d'Or endurance race the preceding week on another Triple, and Cooper wrapped up a memorable international season for BSA-Triumph with victory in the 250-mile race at Ontario in October. Financial difficulties meant that there was no works effort in 1972 but privateers kept the Triples winning for many years. Miles Engineering later acquired the rights to the North chassis and continued production, ensuring that the BSA-Triumph triples remain a potent force in classic racing today. The Rob North frames are currently produced by Trident Engineering.

This Miles-framed Trident was built in the late 1980s/early 1990s and raced extensively at CRMC events for many years. Well known motorcycle racer/journalist Ray Knight campaigned the Trident for the Rosner équipe from circa 1992 to 1996, winning first time out at Brands Hatch. Danny Imberg then took over, scoring a memorable double race victory in the Classic Race of the Year meeting at Snetterton in 1997 and winning the CRMC's Carole Nash-sponsored Formula 750 Championship the following year. The Rosner Trident continued to be raced successfully by Pat Mooney and for the last 6-7 years has been on display in showroom of Carl's motorcycle dealership in Croydon.

It specification includes competition crankcases with drilled-out oil ways; a lightened, polished, balanced and cross-drilled crankshaft; Megacycle full race camshafts; Carrillo con-rods; Omega racing pistons; high-flow oil pump; Richard Peckett centre-plug, high-compression cylinder head, ported and polished; titanium valve gear; Quaife five-speed gear cluster; Peckett belt primary drive; cush drive rear hub; and a full race exhaust system. Fully rebuilt and ready to race, this potentially most competitive Formula 750 racer is offered with dynamometer printouts (81.7bhp at 8,600rpm); various results sheets; CRMC Machine Registration Certificate; and a substantial quantity of invoices and other paperwork relating to its construction and subsequent maintenance.

Saleroom notices

  • The Frame number is: ME00296 The Engine number is: T150V GG03006
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