On Occtober 17, 2010 Bonhams auctions a 1972 Colin Seeley-Trident 750cc race bike. The bike sells for $18,204 ( approx £11,845).
Colin Seeley's lightweight, rigid chassis proved an effective means of prolonging the competitiveness of British four-stroke singles into the late 1960's, leading to requests for frames to accommodate other engines such as the twin-cylinder Norton Commando and BSA/Triumph triple. One of the first customers for a 'multi-cylinder' chassis was Stan Shenton, head of Boyer of Bromley, one of Britain's biggest and best Triumph dealers. Shenton requested a Seeley frame to suit a Triumph triple, which was designed and drawn by Bob Cakebread and built by Jack Wren. Colin Seeley Racing Developments would eventually build fourteen frames for Boyer.
Bonhams had the frame authenticated by Colin Seeley himself, it was supplied to Boyer on March 2, 1972. The bike's racing history was not known, other than the fact that it was loaned in to Mick Grant in 1973, who rode it at Brands Hatch and Mallory Park.
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