Beta Evo 300 2T [2017-2022]: A Trials Machine Built for Precision and Agility

Introduction

The Beta Evo 300 2T represents the pinnacle of trial motorcycle engineering from 2017 to 2022, blending Italian craftsmanship with a razor-sharp focus on lightweight agility and torque-rich performance. Designed for riders who demand precision in technical terrain, this two-stroke marvel has cemented itself as a favorite among amateur enthusiasts and competitive trialists alike. Over five years of production, Beta refined its formula without compromising the raw, mechanical connection that defines the Evo’s character. Let’s dissect what makes this machine tick—and why it still turns heads in the trials community.

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Engine Performance: The Heart of a Trials Beast

At the core of the Beta Evo 300 2T lies a 296.5cc liquid-cooled single-cylinder two-stroke engine. With a bore and stroke of 79.0 x 60.5 mm (3.1 x 2.4 inches), this powerplant prioritizes low-end grunt over top-end frenzy—a critical trait for navigating rocky inclines or balancing on precarious ledges. The Keihin PWK 28mm carburetor delivers crisp throttle response, though it demands patience in tuning for altitude or temperature shifts. Riders will appreciate the absence of fuel injection complexities here; this is old-school analog performance at its finest.

Compression ratios vary slightly across model years (10.2:1 to 10.9:1), allowing subtle adjustments in power delivery. The 6-speed gearbox is a standout, offering seamless transitions between ratios. First gear crawls at a snail’s pace for ultra-precise obstacle work, while sixth gear opens up surprising versatility for connecting trails. Fuel consumption sits at 2.80 L/100 km (84.01 mpg), though the tiny 2.8-liter (0.74 US gal) tank ensures frequent stops during long practice sessions.

What truly sets this engine apart is its lamellar induction system. By optimizing crankcase airflow, Beta achieved a broader torque curve that forgives minor throttle errors—a godsend for riders learning to finesse their way through sections.

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Chassis and Handling: Dance Like a Mountain Goat

Weighing just 66-67 kg (145.5-147.7 lbs) dry, the Evo 300 feels like an extension of your body. The hydroformed aluminum frame strikes a perfect balance between rigidity and flex, absorbing impacts without numbing feedback. At 1,305 mm (51.4 inches), the wheelbase lends stability on steep descents while remaining compact enough for tight pivots.

Michelin X-Light tires—2.75-21 front and 4.00-18 rear—provide tenacious grip on everything from wet roots to granite slabs. Their lightweight construction enhances the bike’s flickable nature, though aggressive riders might crave more durable rubber for rocky abuse. Ground clearance of 310 mm (12.2 inches) lets you straddle logs and boulders without fear of hang-ups, while the 660 mm (26-inch) seat height keeps confidence high for shorter riders.

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Suspension and Brakes: Controlled Aggression

Beta equipped the Evo 300 with a 38mm hydraulic fork offering 165 mm (6.5 inches) of travel—stiff enough to handle hard landings but supple over high-frequency bumps. Out back, the coaxial monoshock delivers 180 mm (7.1 inches) of wheel travel with adjustable compression and rebound. While not as tunable as full MX setups, this configuration excels in trials’ unique demands: slow-speed control trumps big-hit absorption.

Braking is handled by a 4-piston front caliper and 2-piston rear, both biting single 160-165mm discs. The rear brake offers exceptional modulation for balancing acts, though some riders retrofit larger rotors for muddy conditions.

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Ergonomics: Built for the Long Haul

The Evo’s cockpit is minimalist yet functional. Narrow bodywork lets you grip the bike with your knees effortlessly, while the handlebar bend accommodates both standing attacks and seated recoveries. At 850 mm (33.5 inches) wide, it slips through gaps that would stall bulkier machines. The lack of a cushy seat (a trials trademark) reinforces this bike’s purpose: you’re here to work, not cruise.

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Competition: How the Beta Stacks Up

In the trials arena, the Evo 300 faces fierce rivals:

1. GasGas TXT 300
   GasGas leans toward a sharper powerband, rewarding skilled riders but punishing novices. The Beta’s broader torque curve and smoother clutch action make it more accessible.

2. Sherco ST 300
   Sherco’s flagship emphasizes hydraulic clutch refinement and slightly plusher suspension. However, the Beta counters with easier maintenance and a more robust parts network.

3. Montesa Cota 4RT
   Honda-powered Montesa offers 4-stroke reliability but weighs 8-10 kg (17.6-22 lbs) more. The Beta’s lighter feel shines in technical climbs.

While all competitors are capable, the Evo 300 strikes a unique balance between approachability and competition-ready performance.

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Maintenance: Keeping Your Beta in Fighting Shape

As a MOTOPARTS.store journalist, I’ve seen how proper care extends the life of these machines:

• 2-Stroke Simplicity: Mix fuel at 1.5% (15ml oil per liter/2 oz per gallon). Synthetic oils like Motul 710 minimize carbon buildup.
• Carburetor TLC: Clean the Keihin PWK every 20-30 hours. Consider a JD Jet Kit for altitude adjustments.
• Air Filter Vigilance: Foam filters clog quickly in dusty conditions. Swap in a Twin Air replacement for improved airflow.
• Clutch Health: The wet multi-disc clutch thrives on routine oil changes (10W-40 every 15 hours). Upgrade springs for heavy abuse.
• Suspension Service: Rebuild forks annually; shock oil degrades faster under trials’ constant load cycles.

For upgrades, MOTOPARTS.store stocks everything from Galfer wave rotors to SKF fork seals—small investments that pay dividends in performance.

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Final Thoughts

The Beta Evo 300 2T isn’t just a motorcycle; it’s a partner in conquering the impossible. From its tractable engine to its ballet-dancer chassis, every component serves the rider’s ambition. While newer models flirt with electrification and TPI, this carbureted warrior remains a testament to mechanical purity. Whether you’re cleaning a championship section or honing skills in the backyard, the Evo 300 rewards patience with progress.

Ready to personalize your Beta? Explore MOTOPARTS.store’s curated selection of upgrades—because even legends can evolve.

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Specifications sheet

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