Husqvarna TX 300 TPI (2017-2019): A Legacy of Two-Stroke Dominance

Introduction

The Husqvarna TX 300 TPI (2017-2019) represents a golden era for two-stroke enduro motorcycles, blending raw power with precision engineering. Designed for riders who demand agility in technical terrain and reliability in harsh conditions, this generation solidified Husqvarna’s reputation as a leader in off-road performance. While the "TPI" designation might suggest fuel injection, this carbureted model generation (equipped with Mikuni TMX 38mm carburetors) offers a visceral riding experience that purists still celebrate today. Let’s dissect why this machine remains a benchmark in the enduro world.

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Engine Performance: Carbureted Brutality Meets Refinement

At the heart of the TX 300 lies a 293cc two-stroke single-cylinder engine, producing a thrilling 50+ horsepower. The 72mm bore and stroke create a square engine configuration, balancing low-end torque and high-revving aggression. The Mikuni TMX 38mm carburetor delivers crisp throttle response, though it demands meticulous jetting for altitude or temperature changes—a small price for the analog thrill it provides.

Key upgrades during this generation include the counter balancer shaft (introduced in 2018), which reduced vibration by 50% compared to earlier models. Combined with the WP suspension and Magura hydraulic clutch, the engine’s character evolves from frenetic to controlled, letting riders exploit its powerband without fatigue.

The six-speed gearbox is a standout, with a wide ratio spread perfect for crawling over rocks or hitting 100+ km/h (62+ mph) on open trails. The Magura clutch system requires just one-finger effort, even during marathon technical sections.

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Chassis and Suspension: Precision Meets Durability

Frame and Geometry

The 25CrMo4 steel central-tube frame strikes a balance between flex and rigidity. With a 26.5° rake and 106mm (4.2") trail, the TX 300 corners like a trials bike yet remains stable at speed. The 1485mm (58.5") wheelbase and 370mm (14.6") ground clearance make it a master of both tight singletrack and rocky riverbeds.

Suspension Evolution

• 2017 Models: Featured the WP AER 48 fork with air spring adjustability, offering 310mm (12.2") of travel.
• 2018-2019 Models: Switched to WP Xplor 48 forks with coil springs and preload adjusters, prioritizing plushness over roots and logs.
• Rear Suspension: All years shared a WP shock absorber with 300mm (11.8") of travel, adjustable for high/low-speed compression and rebound.

The 2019 update also saw Magura replace Brembo brakes, with their single-piston rear and twin-piston front calipers offering progressive bite and minimal fade.

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Riding Experience: Where the TX 300 Shines

Ergonomics

At 950–960mm (37.4–37.8"), the seat height is intimidating for shorter riders but perfect for standing attacks. The narrow midsection and grippy seat allow effortless weight shifts during hill climbs or ruts.

On the Trail

• Low-End Grunt: The engine pulls cleanly from idle, making it impossible to stall—even in first-gear rock gardens.
• Mid-Range Punch: A surge of power around 5,000 RPM rockets the bike out of corners.
• Top-End Scream: Reserved for open fire roads, where the TX 300 feels like a motocrosser with endurance.

The 98.4–99kg (217–218lb) dry weight disappears beneath you, encouraging reckless climbs and precision descents. The counter balancer (2018+) eliminates arm-numbing vibrations, a game-changer for multi-hour rides.

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Competition: How Does It Stack Up?

KTM 300 XC-W

• Similar engine and chassis DNA (both under Pierer Mobility Group).
• KTM uses linkage-less PDS rear suspension vs. Husqvarna’s linkage system—Husky feels more planted in whoops.
• Husqvarna’s subframe design allows easier airbox access.

Beta 300 RR

• Softer power delivery, better for beginners.
• Heavier at 106kg (234lb), less flickable in tight woods.
• Lacks Husqvarna’s premium WP suspension out of the box.

Sherco 300 SE

• Electric start only (no kickstarter backup).
• Sherco’s chassis feels stiffer, requiring more aggressive rider input.
• Husqvarna’s aftermarket support is vastly superior.

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Maintenance: Keeping the Beast Alive

Critical Service Intervals

1. Air Filter: Clean every 10–15 hours (or after dusty rides). Upgrade to a Twin Air filter for better airflow.
2. Piston Rings: Replace every 80–100 hours. Consider a Vertex piston kit for extended durability.
3. Suspension: Rebuild forks/shock every 100 hours. MOTOPARTS.store offers WP-specific seal kits.
4. Cooling System: Flush coolant annually. A 1.8-bar radiator cap prevents boil-overs.

Common Upgrades

• Carburetor Tuning: JD Jet Kit resolves Mikuni TMX flat spots.
• Handguards: Cycra Probend CRM mounts withstand crashes.
• Skid Plate: Acerbis composite guards protect the frame and linkage.
• Sprockets: Swap to a 52-tooth rear for tighter trails.

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Final Thoughts

The Husqvarna TX 300 TPI (2017-2019) isn’t just a motorcycle—it’s a statement. It rewards skilled riders with unmatched agility and punishes laziness with its demanding powerband. While the carburetor requires patience to master, it offers a level of tunability that fuel-injected models can’t match. For those seeking a two-stroke that bridges the gap between vintage rawness and modern refinement, this Husqvarna generation remains a top contender.

Whether you’re rebuilding the top end or upgrading the brakes, MOTOPARTS.store has the OEM and aftermarket components to keep your TX 300 dominating the trails. From suspension kits to CNC-machined levers, we’re your partner in off-road excellence.

Ride hard, ride smart.

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Specifications sheet

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