Royal Enfield Australia has wrapped up season three of its Busted Knuckles Build-Off, with dealerships across the country transforming the Shotgun 650 into some of the most radical and creative custom motorcycles seen in the competition so far. Press: Royal Enfield ANZ

The Busted Knuckles Build-Off is an exclusive Royal Enfield dealer custom competition designed to showcase bespoke engineering and custom creativity using motorcycles from the Royal Enfield range. For 2026, participating dealerships were tasked with reimagining the Shotgun 650, a model already heavily inspired by custom culture and factory-built individuality. Australia became the first global market to host the third edition of the competition, with Royal Enfield narrowing dealer entries down to five finalists, each given six months to create a unique custom build.

MotoMAX’s Dirty Purdy.

Among the standout creations was Dirty Purdy from MotoMAX, a stripped-back and aggressive interpretation of the Shotgun 650 featuring dramatic high-mounted twin “shotgun” exhausts, lowered suspension and raw steel finishes. Designed to amplify the Shotgun’s existing attitude rather than completely reinvent it, the build delivered a louder and more hard-edged version of the original concept.

Moto Machine’s Desert Eagle.

Moto Machine took a completely different approach with the Desert Eagle, a post-apocalyptic desert bobber inspired by Dakar racers and Group B rally cars. The build featured a nitrous system, fabricated fuel tank, custom ram-air intake, side-exit exhausts and extensive CNC-machined and 3D-printed details.

Expert’s Choice winner, RE1000 by GRID Motorcycles.

Perhaps the most ambitious build of the competition came from Expert’s Choice Award Winner, GRID Motorcycles with the stunning RE1000. Built around what Royal Enfield describes as a world-first 1000cc parallel twin conversion based on the Shotgun 650 platform, the drag-race-inspired custom featured a hand-built chrome moly frame, bespoke aluminium bodywork and extensive one-off fabrication work.

Sawn-Off by house Of Motorcycles.

House of Motorcycles entered the Sawn-Off, a low-slung bobber-inspired machine focused on simplicity and aggressive styling, while Fast Fuel Motorcycles produced the aviation-inspired Spitfire 650, complete with ammunition-case saddlebags, afterburner-style flame throwers and bomber-themed detailing.

Spitfire by Fast Fuel Motorcycles.

The competition again highlighted the flexibility of the Shotgun 650 platform and Royal Enfield’s growing connection to global custom culture, with each dealership producing vastly different interpretations while still maintaining the core character of the original motorcycle.

BikeReview were on hand for the event and we will have a feature on the night and each of the bikes in the coming week. You can now also vote for the People’s Choice Award here… 

 

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