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Triumph Street Triple

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Triumph Street Triple

The Triumph Street Triple is a standard motorcycle made by Triumph Motorcycles since 2007. The bike is closely modelled on the Speed Triple 1050 but uses a detuned inline three cylinder 675 cc engine from the Daytona 675 sport bike, which was released in 2006.

In 2007, a number of spy photos and speculative design drawings were reported in the motorcycle press, with one magazine capturing a road test of the completed Street Triple. Later articles reported on leaked design shots of the new bike. A report on the showcasing of the finished bike to dealers was published on 6 March 2007, along with a spy video of a test ride.

The Triumph Street Triple was launched on October 1st, 2007, to replace the 600 Speed Four. It shares the design of the modern Triumph naked models, introduced on the Speed Triple in 2005, with high-mount twin mufflers, dual circular headlights with a dashboard unit mounted on the top. The biggest difference with the Street Triple is the conventional swingarm, instead of the single-sided unit on the Speed Triple. Many parts are shared with the Triumph Daytona 675, mainly visible on the frame and swingarm. The 675cc three cylinder engine, borrowed from the Daytona 675, is re-tuned to make it more street friendly and usable as a daily rider naked, but still powerful in the category with 79 kW (106 bhp) @ 11,750 rpm. Since the Daytona 675 engine is a triple cylinder, Triumph introduced a new naming instead of adding the displacement to the Speed Triple name, making it a brand new model in Triumph history.

Launched in 2008, the Street Triple R shares the same engine and chassis as the standard model but has fully adjustable suspension both front and rear which is shared with the Daytona. The revised rear suspension results in a slightly higher seat height over the standard model and sharper rake. The front brakes are also shared with the Triumph 675 Daytona, with a fully radial Nissin setup, master cylinder and calipers. It has other minor equipment differences over the standard bike in the way of handlebars, seat, and different colour schemes, which were matte orange and matte grey.

The Street Triple's circular headlights were changed to an angular shape for the 2012 model year, in line with the new identity of modern naked models, changed for the 2011 Speed Triple 1050 model. It was controversial at the time, because the circular headlights has been the identity of the modern naked models since 1997 and was quickly nicknamed the bugeye model from the bug like appearance the lights give the bike. The other changes includes redesigned side casings, brushed aluminum finish around the exhausts, black finish rear sets and revised stickers. The modifications were only cosmetics on both Street Triple and Street Triple R models, no changes were made on the engine, nor on the cycle parts.

In 2013, Triumph remodeled the chassis of the Street Triple. It includes a new frame unit, which is still in aluminum, but with fewer parts and welds. The caster angle is steeper, from 24.3° (on the previous model) to 24.1°. The old tubular sub-frame is changed for a new aluminum cast sub-frame unit. The most distinctive modification is a new exhaust mounted underneath the engine, replacing the underseat exhaust from the previous version, moving the centre of mass forwards and down. Lighter rims are also mounted on the bike. All these modifications make the bike both lighter and more agile; total mass was reduced by 6 kg, which is the lightest generation of Street Triples. The engine remained unchanged while the 1st gear was made considerably taller by taking the gear ratios from the Daytona 675. The 675 Street Triple gains also new suspensions, new brake discs that can be assisted by a multi-mode disengageable ABS, a coded key, more space under the saddle, a dashboard enriched with a fuel gauge, an improved finish, new mirrors and a discreet modification at the base of the tank.

The Street Triple R gains a red sub-frame and the caster angle is narrower from 23,9° (on the previous model) to 23,4°. The R model remains distinctive with 19mm radial master cylinder and radial 4 pistons brake calipers around 310mm discs. The suspensions with a 41mm inverted fork and separate reservoir shock are adjustable for rebound, compression and preload. A disconnectable and configurable is available as an option. .

In February 2015 Triumph released the Street Triple Rx, based on the R model, with the angular seat unit from the Daytona 675, a quick-shifter and different colours (where the rims are red in any colour scheme).

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