Sherco SE R 125 [2018-2022] Review: A Precision Tool for Enduro Enthusiasts

Introduction

The Sherco SE R 125 isn’t just a motorcycle—it’s a statement of intent. Designed for riders who demand agility, raw power, and unflinching reliability in the dirt, this French-engineered enduro machine carves its identity in the competitive 125cc two-stroke segment. Having spent a day wrestling this lightweight beast through rocky trails, muddy ruts, and steep hill climbs, I can confidently say it’s a bike that rewards skill and punishes complacency. Let’s dive into what makes this generation of the Sherco 125 SE-R a standout choice for hardcore offroaders.

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Engine Performance: Two-Stroke Fury, Refined

At the heart of the Sherco SE R 125 lies a 124.8cc liquid-cooled two-stroke engine, a configuration that’s become increasingly rare in an era of emissions regulations. This isn’t a relic, though—it’s a meticulously tuned powerplant designed to deliver explosive performance where it matters most.

The Keihin PWK 36 carburetor provides crisp throttle response, avoiding the cold-start hiccups that plague some fuel-injected competitors. On tight single-track trails, the engine’s low-end grunt is surprisingly tractable for a 125cc, but twist the throttle past halfway, and the powerband hits like a caffeine spike. The 54 x 54.5mm bore/stroke ratio ensures rapid revving, propelling the bike forward with a sharp, raspy exhaust note from its chromed-steel exhaust and aluminum silencer.

What impressed me most was the hydraulic clutch—a rarity in this class. The multidisc oil-bath system offers buttery modulation, essential for technical climbs where feathering the clutch is a survival skill. Paired with a six-speed gearbox that slots into place with rifle-bolt precision, it transforms rocky ascents into a game of finesse rather than brute force.

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Chassis & Handling: Dance Partner in the Dirt

Sherco’s Chrome-Molybdenum steel semi-perimeter frame strikes a perfect balance between rigidity and flex. At 1465mm (57.7"), the wheelbase feels compact enough for weaving between trees yet stable at speed through whoop sections. Combined with a dry weight hovering around 67kg (147.7 lbs), the SE R 125 changes direction like a thought—flick it sideways mid-air, and it complies without protest.

Michelin Enduro Medium tires (1.60-21 front, 2.15-18 rear) provide predictable grip across varied terrain. During my test ride, they clawed through deep mud and bit into loose gravel with equal tenacity. The 355mm (14") ground clearance is more than ample—even on jagged rock gardens, the skid plate rarely made contact.

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Suspension & Brakes: Pro-Level Components

This is where the Sherco separates itself from budget rivals. Earlier models (2018-2020) came with WP Xplor forks offering 300mm (11.8") of travel, while later iterations switched to KYB units with hydraulic adjusters. Both are superb, but the KYB setup on my 2022 test bike felt plusher on small bumps yet resistant to bottoming-out during hard landings.

Out back, the YB shock absorber (or WP Monoshock in Racing editions) delivers 330mm (13") of controlled travel. Dialing in compression damping transformed the bike from a plush trail-eater to a race-ready missile. Braking is handled by single discs front and rear—simple but effective. The 220mm rotors (8.7") lack the initial bite of premium aftermarket setups but offer progressive feel ideal for slippery descents.

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Ergonomics & Comfort: Built for Battle

At 950mm (37.4"), the seat height is intimidating for shorter riders but perfect for standing attacks. The narrow profile lets you grip the bike with your knees—crucial during high-speed sections. Controls are thoughtfully laid out; the electric start (a godsend after stalling mid-hill) complements the kickstarter backup.

Fuel capacity ranges from 9.7-10.4L (2.56-2.75 US gal) depending on model year—enough for 2-3 hours of hard riding. Just remember to premix at 2% (50:1 ratio). The Shido lithium battery saves weight and survived repeated cold starts without complaint.

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Competition: How It Stacks Up

KTM 125 EXC: The Austrian rival packs a punch with its counterbalanced engine and Brembo brakes. However, the Sherco’s hydraulic clutch and steel frame offer better feedback in technical terrain.

Husqvarna TE 125: Shares KTM’s DNA but adds a composite subframe. Lighter than the Sherco by 3kg (6.6 lbs), yet the SE R 125’s KYB/WP suspension combo feels more adaptable to varied skill levels.

Beta RR 125: Italian charm with Sachs suspension. Beta’s softer power delivery suits beginners, but advanced riders will prefer the Sherco’s aggressive hit and race-bred components.

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Maintenance: Keeping the Beast Alive

1. Air Filter Care: Frequent offroad use demands cleaning every 10-15 hours. Consider a Twin Air replacement filter from MOTOPARTS.store for improved airflow and easier maintenance.
2. Suspension Servicing: Rebuild forks and shock every 80-100 hours. Upgrade to SKF seals for extended durability.
3. Premix Wisdom: Stick to 98 RON fuel and quality synthetic oils. A ratio tester eliminates guesswork.
4. Chain & Sprockets: The DID chain holds up well, but switching to a Supersprox stealth rear sprocket reduces unsprung weight.
5. Exhaust Upkeep: Prevent corrosion by repacking the silencer every 50 hours. An FMF Fatty pipe boosts mid-range if you’re chasing more punch.

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Conclusion

The Sherco SE R 125 isn’t just a bike—it’s a commitment to the purest form of two-stroke enduro. While it demands respect and regular care, it repays the diligent rider with telepathic handling and a powerband that laughs at obstacles. Whether you’re hunting race podiums or mastering backcountry trails, this French phenom remains a compelling choice.

Ready to personalize your Sherco? MOTOPARTS.store stocks everything from performance upgrades to essential maintenance kits—because even the best tools need tuning.

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Specifications sheet

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