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- Q3999076 subject Q7469015.
- Q3999076 subject Q8436383.
- Q3999076 subject Q8642877.
- Q3999076 subject Q8873402.
- Q3999076 abstract "Triton motorcycles were not factory models but were hybrid bikes built in the 1960s and 1970s. Many were privately constructed but some London dealers offered complete bikes. The builders fitted Triumph engines into Norton frames, and the aim was to combine the best elements of each marque and thus gain a bike superior to either. Many Tritons were configured as café racers with single-seats. The name 'Triton' is a contraction of Triumph and Norton; and 'Triton' was the name of a mythological Greek God.The Norton Featherbed frame was regarded as the best handling item of the day, and the Triton rationale was to combine the "best engine" with the "best frame" by replacing the standard Norton engine with Triumph parallel-twin engine. A popular engine choice was the Triumph Bonneville unit with twin carburettors and twin camshafts. This pushrod engine gave good performance and reliability and could be more easily tuned for greater power using high-profile camshafts, high compression pistons and twin carburettors. In due course, a Weslake 8-valve head became available for the Triumph motor.The Norton 650 and 750 vertical twin engines had a reliability problem. At about 7000 rpm the piston exceeds the engineering limit for piston speed, so over-revving soon destroys the engines. The BSA 650 had a bronze bush main bearing on the right hand side, doubling as the crank oil feed, with a lack of effective crankshaft end play control, that all had difficulty staying together when ridden hard, even though the rest of the design was possibly more robust than the Triumph. The Triumph vertical twin used a ball on the timing side, and a roller on the other, with the oil feeding through a separate bronze bush in the outer right hand engine side cover.Whereas the Norton 650SS 646.44 cc had a bore and stroke of 68 x 89 mm giving 49 bhp (37 kW) @ 6,800 rpm, the Triumph T120 Bonneville 649.31 cc had a bore and stroke of 71 x 82 mm giving 46 bhp (34 kW) @ 6,500 rpm. However the mean piston speed of the Norton was 3,971 ft/min (almost at the, then accepted, limit of 4,000 ft/min). The Triumph, with its shorter stroke, had a mean piston speed of only 3,497 ft/min, had much less vibration and was much stronger and reliable. Road tests showed that the Norton had a higher top speed due to its 3 bhp (2.2 kW) advantage. In spite of this, the Triumph was the much preferred engine. The Norton featherbed was the preferred frame, hence the Triton.Tritons with a pre-unit Triumph motor sometimes retained the post-1960 Norton AMC gearbox, which was thought superior to the equivalent Triumph gearbox. A Quaife five speed gearbox was sometimes used. More modern Tritons use a Triumph unit construction twin in a Featherbed frame.Several motorcycle dealers made equipment for Triton conversions, some would do the complete job for customers while others sold complete Tritons. The most important part required are the engine mounting plates and several different designs exist that can affect the engine placement and therefore the handling. The lower the engine is mounted the better the handling achieved from the Norton frame.".
- Q3999076 thumbnail Triton.jpg?width=300.
- Q3999076 wikiPageExternalLink search?search=cafe+racer.
- Q3999076 wikiPageExternalLink 55triton.html.
- Q3999076 wikiPageExternalLink triton04120100.html.
- Q3999076 wikiPageExternalLink articles.html?id=79.
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- Q3999076 wikiPageWikiLink Q7239274.
- Q3999076 wikiPageWikiLink Q7469015.
- Q3999076 wikiPageWikiLink Q7840449.
- Q3999076 wikiPageWikiLink Q7844510.
- Q3999076 wikiPageWikiLink Q84.
- Q3999076 wikiPageWikiLink Q8436383.
- Q3999076 wikiPageWikiLink Q8642877.
- Q3999076 wikiPageWikiLink Q8873402.
- Q3999076 comment "Triton motorcycles were not factory models but were hybrid bikes built in the 1960s and 1970s. Many were privately constructed but some London dealers offered complete bikes. The builders fitted Triumph engines into Norton frames, and the aim was to combine the best elements of each marque and thus gain a bike superior to either. Many Tritons were configured as café racers with single-seats.".
- Q3999076 label "Triton motorcycle".
- Q3999076 depiction Triton.jpg.