This is from the site Bring a Trailer (https://bringatrailer.com/) ...
This café racer was built by the previous owner using a 1950s Norton Dominator Wideline Featherbed frame and a rebuilt Triumph T140 750cc parallel twin engine and five-speed transmission. The name “Triton” is derived from the combination of the Triumph drivetrain and Norton frame. The bike is equipped with electronic ignition, fuel and oil tanks by The Tank Shop of Scotland, a dual-outlet exhaust system, custom wheels with shouldered alloy hoops and stainless spokes, and powdercoated hubs and brake drum housings. This Triton is now offered by the selling dealer with a clean New Jersey title, which describes the bike as a 1973 Triumph Tiger.
The aluminum fuel tank was fabricated by The Tank Shop in Scotland and bears Triton script using Norton’s font. The Norton Dominator Wideline Featherbed frame and swingarm are finished in black, and the bike is equipped with a short rear mudguard, an aluminum front fender, and dual un-silenced polished exhaust pipes.
The front Road Holder forks have been rebuilt with chrome progressive rate external springs, and a set of coilover assemblies are installed at the rear. The wheels were built with stainless spokes and shouldered alloy hoops. Avon Roadracer tires are fitted. Braking is handled by a Norton dual-shoe front drum and a modified Norton Dominator expanding shoe rear drum. Both hubs have been powdercoated black and are fitted with chrome hardware.
The in-frame oil system has been replaced with a separate oil tank from The Tank Shop in Scotland, and a filler cutout is present in the seat pan. The seat is upholstered in black vinyl with red piping, and conventional controls are mounted to a set of clip-on handlebars. The bike is not equipped with a speedometer or odometer.
The 750cc parallel twin engine was sourced from a 1973 Triumph T140, and induction is handled by a single Amal carburetor with a metal air cleaner. The engine was reportedly rebuilt approximately 400 miles ago and is equipped with electronic ignition. Power is sent to the rear wheel by a separate 5-speed transmission with chain drive, and the sole instrument is an oil pressure gauge which emerges directly from the crankcase. A walk-around and drive video is viewable below.