Fast Fuel Custom Spitfire 650 Adds Afterburner Flame Throwers to Shotgun 650

If you’re eyeing the Shotgun 650, the first thing that grabs your attention is the custom Spitfire’s afterburner‑style flame throwers – a visual that screams fighter jet more than street‑legal motorcycle. It’s not a performance tweak, the engine stays the same 648‑cc single that delivers about 42 bhp and 45 Nm, so the power on the road is unchanged.

The base Shotgun 650 sits in the mid‑range single‑bike segment, competing with the Honda Shadow Custom and Yamaha V Star 650. Fast Fuel’s build adds aviation‑inspired detailing: ammo‑case saddlebags, a hand‑brushed bomber‑teeth clutch cover, and a candy‑red powder‑coated finish that pops against the black chassis. It’s a stark contrast to the more subdued styling of the standard model.

Practicality isn’t lost in the flair. The cockpit gets internally wired handlebars, cutting dead‑eye wiring from the front; a sprung seat with custom upholstery gives the rider a more forgiving ride. Fast Fuel stresses the bike’s road‑registrable status – it’s not a show‑piece that can only sit on a display. The LED tail‑strip and other custom lighting keep it compliant with Indian lighting regulations.

Because this kit is built for the 2026 Busted Knuckles Build Off in Australia, there’s no retail price or dealer rollout. If you’re serious about a custom, the path is to commission Fast Fuel or a similar builder, but you’ll be paying for bespoke labour, parts, and the cost of keeping the bike road‑legal.

The Spitfire 650 will hit the streets of Australia in 2026, but it will be a unique, hard‑to‑find piece. For Indian buyers, the takeaway is that a Shotgun 650 can be turned into a jaw‑dropping, aircraft‑themed machine, but it will remain a custom project, not a factory‑priced variant. Keep an eye on Fast Fuel’s next build for hints on how to upscale the concept for a wider market.