From roadster to racer: Custom Royal Enfield Guerrilla 450 that will leave you speechless

XTR Pepo’s custom Guerrilla 450 morphs into a sleek café racer, featuring a stripped-down chassis, enhanced engine, high-end Showa forks, Nitron shocks, lightweight Dymag alloys, and striking carbon fibre accents.

Royal Enfield Guerrilla 450 custom
Custom Royal Enfield Guerrilla 450 supermono racer (Image: Instagram/XTR Pepo)

Royal Enfield just rolled into France and dropped jaws at the Wheels and Waves Festival 2025 with a customised Guerilla 450 that looks like it time-travelled straight out of a vintage racetrack and crash-landed in a design lab. This café racer beast is built to dominate the tarmac.

The mastermind behind this two-wheeled rebellion is none other than Pepo Rosell, popularly known as XTR Pepo. The  Italian has a knack for fusing old-school racing charm with unapologetically bold design. 

The savage Guerrilla 450 XTR Pepo edition

The custom Guerrilla is a stark change from the stock version, and there’s a very good chance that you will not recognise it as a Royal Enfield machine. Speaking to the media, Pepo confessed he’s very fond of single-cylinder motorcycles and when he got the opportunity to work with Royal Enfield, this gave him a blank canvas where he could pretty much create anything he wanted to. He knew it had to be a tarmac-focused race bike.

Pepo started working on the Guerrilla 450 around a year ago, and he decided to strip it completely down to the chassis and the powertrain. He retained the standard engine, but gave it minor tweaks like a new airbox, including the air filter and airflow of the liquid-cooled motor. Built by Xpipe, the customised bike sports a 45 mm titanium Spark muffler.

To give the bike a more aggressive stance, Pepo chopped off the subframe and created a new one with a new set of footpegs. The custom Guerrilla 450 is equipped with premium parts like Showa front forks that are used in the Aprilia RSV 1000, a swingarm from Aprilia RS 660 and custom-built Nitron rear shock absorbers.

The Guerrilla 450 XTR Pepo edition rides on 17-inch Dymag magnesium alloys with Continental Conti Road Attack 2 tyres. It gets twin front disc brakes with a single setup at the rear. In terms of design, it has a quarter fairing, an angular fuel tank, a skid plate, selected carbon fibre parts and an XTR carbon fibre rear mudguard.

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This article was first uploaded on June twenty-four, twenty twenty-five, at thirty-seven minutes past eight in the night.
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