Royal Enfield Guerrilla 450 roadster transformed into long-legged '90s inspired supermoto

An easy-going Royal Enfield Guerrilla 450 roadster has been transformed into a vibrant long-legged supermoto, inspired by youth culture of the 1990s.

The SM450 Urban Guerrilla has been built in a collaboration between renowned illustrator Ryan Roadkill, and custom house Sticky’s Speed Shop, and is currently being displayed at a number of popular motorcycling events across the summer.

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Based on the Indian firm’s A2 licence-compliant roadster released for 2024, the colourful SM is powered by a liquid-cooled 452cc single-cylinder engine – also shared with Enfield’s Himalayan 450 – the firm’s adventure bike. This particular engine has been fully blacked-out – sitting in contrast with the white frame, with pink accents in the stamped Royal Enfield logo.

This motor has now been modified with a new intake and Jenvey throttle body – with a high-exit full exhaust system shrouded behind a right-side mounted number board, indicative of supermotos of the ’90s.

Fuel is fed by a bespoke aluminium fuel tank from Cornish firm Coba Valley Cycles, which tucks neatly in front of the thick seat pad.

The custom build made its debut at the Bike Shed Moto Show in London in late May, before appearing at the Wheels and Waves Festival in Biarritz from June 11-15. From there, it’s moving to the Malle Mile at Grimsthorpe Castle on July 18-20, before the Glemseck show in September.

Finished in a striking mix of white, pink, and purple, the SM450 has also undergone significant tweaks to the chassis.

The standard rear suspension mounting points have been removed, with the conventional tail piece now replaced with a 1987 Yamaha YZ125 subframe and top shock mount – allowing the bike to make use of a reshaped YZ seat unit.

The billet swingarm is also new and comes courtesy of Kent-based Steelheart Engineering.

The shock itself now comes from Öhlins, and slots into place thanks to a redesigned lower linkage, and adjustable dog bones.

Conventionally mounted WP forks also appear upfront, protected by a set of pink rubber gaiters and lead down to an Excel supermoto rim with Talon hub finished in purple – paired with a single Hel disc brake set-up.

A similar wheel design is seen at the rear, with both rims shod with blocky Michelin Supermoto Rain tyres to complete the look.