Custom Triumph Bonneville T100 Has Improved Performance To Match Its Stunning Looks

After seeing the work of Outsiders Motorcycles on Instagram, Douwe decided to get in touch and commission a build of his own. Just like the project which motivated his decision, this endeavor would start with a modern Triumph Bonneville. Douwe wanted a mixture of classic looks and 21st century reliability, so a fuel-injected T100 from the model-year 2008 was chosen as an ideal basis.
Custom Triumph Bonneville T100 8 photos
Photo: Winchester Creatives
Custom Triumph Bonneville T100Custom Triumph Bonneville T100Custom Triumph Bonneville T100Custom Triumph Bonneville T100Custom Triumph Bonneville T100Custom Triumph Bonneville T100Custom Triumph Bonneville T100
With the Bonnie on their workbench, Outsiders’ specialists took it all apart and got started on what would become one of the project’s focal points right away. They shaved off the rearmost portion of the subframe tubing, subsequently installing an LED taillight that’s been put together in-house. As a very cool little touch, this lighting module also incorporates sequential turn signals.

There’s a bespoke license plate bracket fitted right beneath it, and the Bonneville’s stock seat gave way to a much smaller alternative. This new saddle is upholstered in suede up top and standard black leather on the sides, all sitting on an aluminum seat pan built by Jeroen Bouwmeester of Silver Machine. Rear-end suspension duties are now taken care of by Ohlins shock absorbers with piggyback reservoirs.

Up north, you’ll come across inverted Ohlins forks taken from a 2016 MV Agusta Brutale 920, and they’re secured in place via CNC-machined triple clamps. The Brutale appears to have donated its premium Brembo brakes, as well, giving this modified Triumph all the stopping power it could ever need. For the motorcycle’s footgear, Outsiders turned to Kineo’s catalog.

They sourced a light pair of spoked 17-inchers and cloaked their rims in Dunlop Mutant tires for plentiful grip. Glancing upward, we find the repurposed gas tank of a Suzuki GT750, which was modified to work with the T100’s factory fuel pump. The tank is the only piece of bodywork you’ll see on this creature, because the Dutch artisans sought to keep its appearance as minimalistic as possible.

Front-end lighting comes from a Koso LED headlamp and Motogadget blinkers. The latter brand also supplied the digital speedometer found in the cockpit and a mo.unit Blue controller for the electronics. Additionally, the cockpit area is home to an aftermarket handlebar and fresh control levers provided by Magura, but there are no rear-view mirrors to speak of. As you might expect, the powertrain sector hasn’t been neglected, either.

By installing some Dynojet paraphernalia, K&N air filters, and a custom exhaust system with Spark mufflers, Outsiders managed to push the parallel-twin's total output to 80 hp. That’s a pretty considerable increase from the original 67 ponies, and Douwe later confirmed that his one-off Bonnie accelerates like an absolute animal. The cheeky pizza slice emblem on the right engine cover is a handmade silver part, nodding to his career as a pizza restaurant owner.
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About the author: Silvian Secara
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A bit of an artist himself, Silvian sees two- and four-wheeled machines as a form of art, especially restomods and custom rides. Oh, and if you come across a cafe racer article on our website, it’s most likely his doing.
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