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Meet the Guerrilla 450 (2024)
Royal Enfield’s Guerrilla 450 ushers in a fresh chapter for the brand. It borrows the liquid-cooled 452cc Sherpa single from the Himalayan 450—good for ~40 hp / ~40 Nm—matched to a slick 6-speed gearbox and ride-by-wire throttle. At ~408 lb wet, the Guerrilla rolls on 17-inch wheels with sticky road tires, riding a tubular steel frame with an upright stance and balanced weight distribution. The result is a versatile, friendly all-rounder: relaxed in the city, cheeky on backroads.
XTR Pepo Enters: The GRR 450
For 2025, Royal Enfield tapped Pepo Rosell (XTR Pepo)—the Madrid custom maestro—to push the Guerrilla to the limit. The collaboration birthed the GRR 450, unveiled at Wheels & Waves in Biarritz: a stripped, aggressive street racer that turns the playful Guerrilla into a track-leaning weapon.
The Headline: Big Weight Drop, Big Attitude
- Weight: from ~406 lb to ~289 lb (≈ –120 lb)
Achieved via an Aprilia RS 660 swingarm, reworked subframe, carbon-fiber bits, and a minimalist build.
Chassis, Suspension & Brakes
- Front: Upside-down fork from Aprilia RSV 1000 (fully adjustable)
- Rear: Nitrox monoshock
- Brakes: Brembo calipers
- Rolling stock: Forged wheels with performance tires
Together, these upgrades sharpen turn-in and mid-corner control dramatically.
Design for Speed
- Clip-ons, chopped tail, minimal seat, race livery
- Titanium exhaust + open airbox for flow and voice
- Built to attack corners, not pose outside cafés.
Why This Build Matters
The GRR 450 isn’t just show-and-shine—it’s a statement. Royal Enfield is:
- Championing custom culture, inviting owners to mod and personalize.
- Exploring lightweight, sporty territory between their heritage roadsters and ADV bikes.
- Proving the Sherpa platform can swallow serious performance upgrades without losing its reliability chops.
It also teases what a factory “Guerrilla RTR” or special edition could look like.
Stock vs. Custom: Snapshot
| Item | Guerrilla 450 (Stock) | GRR 450 by XTR Pepo |
|---|---|---|
| Engine | 452cc Sherpa single (liquid-cooled) | Same platform, freer-breathing intake/exhaust |
| Output (approx.) | ~40 hp / ~40 Nm | Emphasis on power-to-weight & response |
| Transmission | 6-speed, ride-by-wire | 6-speed, race-leaning setup |
| Weight | ~406–408 lb wet | ~289 lb (claimed build weight) |
| Wheels | 17 in, street tires | Forged wheels, performance rubber |
| Suspension | Road-tuned, non-adjustable | USD RSV-spec fork (adj.), Nitrox shock |
| Brakes | Road-spec discs | Brembo performance setup |
| Ergonomics | Upright, everyday | Clip-ons, compact tail—purposeful |
Pros & Cons of the GRR 450 Project
Pros
- Huge weight reduction (≈ –120 lb)
- Fully adjustable race-grade suspension and top-tier brakes
- Showcases the Guerrilla’s upgrade potential
- Encourages owner customization and scene engagement
Cons
- Not a production model (yet)
- Less daily comfort than stock
- A factory version could carry a higher price
- May be demanding for newer riders
What Could Come Next?
Royal Enfield has been toying with supermoto and flat-track Guerrilla concepts. The buzz around the GRR 450 makes it realistic to imagine:
- Lighter wheels and chassis parts
- Adjustable suspension from the showroom
- Grippier tires, sportier ergonomics
- A factory track kit for weekend warriors
An accessible, mischievous Enfield that loves city sprints and canyon flicks? Yes, please.
Bottom Line
The Guerrilla 450 is a modern, everyday fun machine; the GRR 450 shows how far the platform can be pushed. Together, they signal Royal Enfield’s intent to raise performance while honoring the brand’s approachable character. Whether you wrench your own or wait for a factory hot-rod, the message is clear: the next chapter from Enfield could be lighter, sharper, and even more fun.
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