Born out of a small custom workshop in Birmingham, UK, Mutt Motorcycles entered the production arena with tiny, aggressive looking retro motorcycles underpinned by Chinese and Japanese chassis and motors. Add a host of custom-made components, and the Mutts have managed to cough up quite a decent line-up of some mean looking machines on two-wheels.

For their recent installment, Mutt has come out with the most badass 125cc motorcycle on the planet. Named after the pioneers of heavy metal music, who also come from the same town as Mutt, the “Fat Sabbath” is their brand-new entry into the line of black-themed neo-retro motorcycles that are the blackest of the black (if there is even anything like that).

The tribute to Black Sabbath had already come with the original Sabbath 125 which is a flat black, retro-styled motorcycle that had showcased the concept of being the dark nemesis. Having the same dark, mean and moody traits is this Fat Sabbath that “did two hours of dead lifting then hit town on a search for a Fray Bentos fix.“

Giving it an all-out dark and moody midnight machine status, the folks at Mutt have gone bonkers about the color black. Stealth matt black paint goes all over the bodywork with the trim details swapped out for satin black. It’s so black that even the turn signal lenses are smoked out.

Seen for the very first time on a 125cc production model, the Fat Sabbath gets wide 18" wheels front, and rear shod with classic style deep and wide Continental Twin-duro nobbly tires. The hand finished aluminum mudguards are short cut and are, of course, in black. The stealth appeal of this Fatty is courtesy of the narrow and high blacked out Renthal handlebars that pronounces the Scrambler feel to the bike.

The halogen headlight with matt black grill lights is just something I wish every manufacturer made it as a standard piece of equipment. This Sabbath also comes with blacked out aluminum LED indicators as standard. The black diamond pattern handlebar grips match the hand-made diamond pattern on the saddle seating the rider in a comfortable but upright position “giving a true custom bike riding experience.“

Powering this 231 pound mean monster is a Suzuki GN 125 powertrain which is a 125cc, fuel injected, 4-stroke, single cylinder motor pumping out a healthy 12 hp and 8 lb-ft of torque. Enough for your zips through the dark alley of the concrete jungle. A 5-speed gear box handles transmission and Mutt has provided electric start option too. The satin black custom exhaust is fashioned from stainless steel, and I’m sure it sounds mean.

The all black twin shock tube frame houses standard fork tubes up front and dual spring shocks at the rear. The braking department sees a single disc unit at the front and rear with combines braking feature for heightened safety and confidence. All of this kitted up in China before it made way into the Mutt custom workshop.

The Fat Sabbath, just like all of its stablemates is a limited edition affair and will be available for £3,495 ($5,000). Unfortunately, these guys won’t make it across to this side of the pond. For folks who want to feel a little more grown up, the Mutts have the same formula with a 250cc mill under the hood. It’s called the Sabbath 250 and is available for £4,250 ($6,100). It is slightly bigger with a longer swingarm compared to the 125's, and of course, the 250 has a lot more grunt.

Choose your pick. Whatever it is, be sure you will feel the demeanor of the Black Metal they represent. A ‘Special Operations’ division offers further customization options with top-notch attention to details and fit & finish. Why wouldn’t you? These guys specialize in bespoke custom builds at the root.