Honda NSR 125 R (1998-2001) Review: A Two-Stroke Legend for the Streets

Introduction

The Honda NSR 125 R isn’t just a motorcycle—it’s a rite of passage. Produced between 1998 and 2001, this pint-sized sportbike carries the DNA of Honda’s grand prix-winning two-stroke machines, distilled into a lightweight, accessible package. Designed to dominate the 125cc class, the NSR 125 R blends razor-sharp handling with a thrilling powerband that rewards aggressive riders. But how does it hold up decades later? Let’s twist the throttle and find out.

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Design & Ergonomics: The Miniature Race Replica

Climbing onto the NSR 125 R feels like straddling a scaled-down RC211V. The aggressive full fairing, angular twin-headlight setup, and race-inspired bodywork scream "purpose." Color options like Honda’s iconic red/white/blue tricolor scheme amplify its track-ready aesthetic. At 132 kg (291 lbs) dry, it’s featherlight—easy to maneuver in traffic or heave into corners.

The 790-800 mm (31.1-31.5 in) seat height suits shorter riders, though taller pilots might feel cramped on long rides. The clip-on handlebars and rear-set pegs enforce a committed riding position, but unlike modern supersports, there’s enough padding in the seat to survive an hour in the saddle. The analog tachometer dominates the cockpit, a fitting choice for an engine that lives in the upper RPM range.

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Engine & Performance: Two-Stroke Screamer

The 124.8cc liquid-cooled single-cylinder two-stroke is the star here. With 15 HP @ 9,500 RPM and 15 Nm (11.1 ft.lbs) @ 8,000 RPM, it’s a classic “peaky” two-stroke. Below 7,000 RPM, the engine feels lethargic—a gentle purr that hides its potential. But cross that threshold, and the power valve opens, unleashing a surge of acceleration that pins you to the tank.

The 6-speed gearbox is crisp, encouraging constant shifts to stay in the sweet spot. Top speed hovers around 120 km/h (74.6 mph), though hitting that requires tucking in and wringing every last RPM. Fuel economy? Forget modern four-stroke efficiency—this is a bike that guzzles premix oil and thrives on adrenaline.

Key Highlights:
- Liquid cooling keeps temps stable during hard riding.
- Carbureted fueling delivers raw, analog throttle response.
- Exhaust note: A high-pitched wail that’s pure ’90s GP nostalgia.

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Handling & Braking: Corner Carving Mastery

Weighing just 136 kg (300 lbs) wet, the NSR flicks into corners like a trials bike. The 1345 mm (53 in) wheelbase and 17-inch wheels shod with grippy tires (100/80-17 front, 130/70-17 rear) inspire confidence mid-corner. Suspension is basic—35mm telescopic forks and a preload-adjustable rear shock—but adequate for its weight class.

Braking is handled by single discs front and rear. The initial bite is soft compared to modern ABS-equipped bikes, but there’s ample feel for trail braking. Tire pressures matter here: 2.0 Bar (29 psi) front / 2.25 Bar (32.6 psi) rear optimize grip and wear.

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Competition: How It Stacks Up

The NSR 125 R faced fierce rivals in the late ’90s 125cc sportbike wars:

1. Yamaha TZR 125: Similar two-stroke power but heavier at 139 kg. The TZR’s chassis felt less refined, though its 6-speed gearbox matched Honda’s.
2. Aprilia RS125: The Italian contender packed a Rotax engine with 28 HP (in derestricted form), but reliability and part availability lagged behind Honda.
3. Suzuki RG125 Gamma: A wildcard with a rotary valve induction system, offering smoother low-end power but less top-end rush.

The NSR’s edge? Balance. It delivered Honda’s trademark reliability while capturing the raw thrill of two-stroke power. Today, surviving examples often outlast their competitors thanks to robust engineering.

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Maintenance: Keeping the Two-Stroke Alive

Owning an NSR 125 R means embracing its two-stroke quirks. Here’s what to watch:

1. Spark Plugs: NGK BR9ECS or BR9ECSIX iridium plugs (gap 0.7-0.8 mm) are critical for smooth combustion.
2. Premix Oil: Use high-quality synthetic two-stroke oil at a 1:50 ratio.
3. Chain Care: The 108-link chain needs regular lubrication. Replace worn sprockets (14T front/35-36T rear) to prevent drivetrain slop.
4. Cooling System: Flush with fresh coolant every two years (1.1L capacity).
5. Brake Fluid: DOT 4 fluid refreshes every 12 months for optimal lever feel.

MOTOPARTS.store Recommendations:
- Upgrade to a DID 520VX chain for durability.
- Swap in EBC brake pads for sharper stopping power.
- Keep the power valve clean with Honda’s recommended carbon remover.

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Conclusion: A Timeless Thrill

The Honda NSR 125 R isn’t just a relic—it’s a masterclass in lightweight sportbike design. Its two-stroke engine demands involvement, rewarding riders who master its powerband. While modern bikes offer more tech and comfort, few deliver the NSR’s visceral connection to the road. For those willing to embrace its quirks, this Honda remains a grin-inducing icon.

Whether you’re restoring one or pushing it through mountain passes, MOTOPARTS.store has the OEM-spec parts and performance upgrades to keep your NSR 125 R screaming for decades to come.

Rev hard, ride safe.

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Specifications sheet

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