Project Description


Triton 850 Triumph 8 Valve Special

This is one unique motorcycle, starting it’s life as a Triton being caught on camera in St Ives during the summer of 1966, this photo then went on to be featured on the cover of Mike Clay’s book ‘Cafe Racers’ It was obvious she was destined for fame!

It’s transformation into the fire breathing machine you see today started in 1984.

Over the next few years it grew into a huge 850cc with beefed up crank and Weslake 8v cylinder head sporting 34mm MK11 Amals, belt drive and a JMC swing arm. It ran a best quarter mile time of 11.65 seconds @118mph setting a new track record for over 500cc classics at the annual Blackpool sprint. This was reported in Classic Bike magazine in 1997. Around that time it was also featured in many other motorcycling publications.

After nearly 20 years in hiding we have unearthed this iconic British special, ready for her new owner to write the next chapter.

Being road registered you could always just do the shopping on it.

For classic motorcycle sales, servicing and repairs contact our friendly team today

Get in touch today: 01759 771 691 |

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Motorcycle additional information


  • Ported 8 valve Weslake 850 top end.
  • Omega Pistons with Total Seal rings
  • Balanced & Tuftrided T120 crank
  • Morgo Forged aluminium conrods
  • Megacycle Cams
  • N.R.E Valves & Rockers (shimmed & lightened)
  • Morgo oil Pump
  • Twin 34mm MK11 Amal Carbs
  • Triumph Slick Shift gearbox with 5 speed cluster shimmed & polished
  • Hayward belt primary drive
  • Heavy duty Surflex clutch with flat roller lifter modification
  • Puma timing cover fitted with modified Boyer Bransden ignition
  • Dyna ignition coil with taylor leads
  • Lucas dynamo with 12v JG voltage controller


  • 1959 Norton wideline frame – registered as 1966 as a Triton
  • Showa Shocks
  • Suzuki GSF400 Front end
  • M&P Clipons
  • Suzuki GS500E rear wheel
  • JMC deep braced pro-street swing arm with 5″ extension adjustment
  • Oil Tank, Petrol Tank and Exhaust system by Unity Equipe
  • 18 Wins, 8 Seconds & many placings since 1988
  • Winner York Ultimate street bike comp (4stroke twins) 1988
  • Runner up in Super Twins street class at European drag bike championship 1992
  • Unlimited class champion at Classic Bike magazine sprint 1993
  • Blackpool Sprint over 500cc class champion 1991,1993,1994,1995,1996,1997.
  • Hoghton Tower sprint champion 1995,1996,1997,2000
  • Thunder at the tower runner up 1998
  • Classic bike sprint runner up 1999
  • Featured in Classic bike magazine July 1997
  • Featured in Street fighters magazine June 1997
  • Also pictured on the front of Mike Clay’s book ‘Cafe Racers’
  • Fastest quarter mile 11.65 seconds @118mph
  • Top speed trap run @134mph

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