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Triumph Bonneville Sigma Is a Custom Scrambler Done Differently

Triumph Bonneville Sigma 36 photos
Photo: Tamarit Motorcycles
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When it comes down to customizing Triumph’s modern classics, no one does it better than Tamarit Motorcycles of Elche, Spain. One can never get enough of their startling work, which has garnered worldwide attention and keeps getting better as time goes on. In the paragraphs that follow, we’ll dive in for a closer look at Sigma, the 138th build put together at Tamarit’s HQ.
The project began with a pre-EFI Triumph Bonneville T100, and a large chunk of its OEM componentry was promptly ditched. Tamarit shortened and looped the donor’s subframe, recessing an LED lighting strip into the rearmost section of the tubing while they were at it. Up top, there’s a custom seat whose upholstery extends onto the fuel tank to provide visual continuity.

Rear-end suspension duties are now taken care of by adjustable Hagon Nitro shock absorbers, but the factory forks are still in play up north. They’re embellished with external springs for visual effect, and we find bespoke CNC-machined triple clamps holding everything where it belongs. In that same area, you will also find a grilled LED headlight with retro looks, perched atop the lower triple clamp on a discreet bracket.

Beneath these goodies is a new front fender just large enough to serve its purpose, yet there’s no matching mudguard at the back. Nonetheless, we do see an aluminum chain guard and a swingarm-mounted license plate holder adorning the Bonneville’s rear end. The latter carries tiny LED turn signals from Motogadget, while the billet chain guard features stylish Tamarit branding.

Finishing off the motorcycle’s lower accessories are CNC-milled foot pegs and an off-the-shelf skid plate from the shop’s proprietary catalog of aftermarket parts. The brakes have been fitted with fresh rotors at both ends, and the rearmost unit is mated to a solid lenticular wheel. This is an item we’ve seen on many of Tamarit’s projects, serving both a cosmetic and functional purpose.

Not only does it look the part, but it also offers more stability at high speeds. In the cockpit area, Sigma bears digital Motogadget instrumentation and a low-rise handlebar, which is in turn fitted with several aftermarket items. These include snazzy rubber grips, Kustom Tech control levers, and minute switches, as well as bar-end mirrors and blinkers.

All the electronics were rewired through a Motogadget controller, and they’ve been relocated to a handmade box below the seat. As far as the powertrain mods are concerned, the most noticeable change is the high-mounted exhaust system. Manufactured in-house using stainless-steel, the pipes feature mesh-covered tips, internal baffles, and drilled heat shields to keep temperatures in check.

K&N air filters also make an appearance, joined by a round emblem depicting the project's name and number on the left. Finally, Sigma’s colorway uses dark green, off-white, and gold pinstripes on the bodywork, but chrome plating is the name of the game wherever else you look. The frame and rims got painted black to avoid detracting attention from what really matters.
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About the author: Silvian Secara
Silvian Secara profile photo

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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