Beta Evo 80 [2017-2022] Review: A Trials Machine for Aspiring Champions

Introduction

The Beta Evo 80, produced from 2017 to 2022, represents a critical stepping stone for young riders entering the demanding world of trials motorcycles. Designed as a bridge between beginner bikes and full-sized competition machines, this two-stroke marvel balances approachable power with the precision engineering Beta is known for. Available in Junior (ages 7-12) and Senior (ages 10-15) configurations, it’s not just a motorcycle – it’s a training ground for developing balance, throttle control, and technical riding skills. Let’s dissect what makes this Italian stallion a favorite among young trials enthusiasts.

Design Philosophy: Lightweight Agility Meets Practical Toughness

At first glance, the Evo 80 screams purpose-built functionality. The slim steel frame (common to both Junior and Senior models) weighs just 53 kg (117 lbs), making it manageable for young riders while surviving inevitable drops.

Key Design Differences:
- Junior Model:
- Shorter wheelbase: 1,210 mm (47.6") vs Senior’s 1,230 mm (48.4")
- Lower seat height: 620 mm (24.4") vs 678 mm (26.7")
- Compact tires: 2.5-19 front / 3.5-17 rear

• Senior Model:
• Larger contact patches: 2.75-21 front / 4-18 rear tires
• Increased ground clearance: 325 mm (12.8") vs Junior’s 300 mm (11.8")

The liquid-cooled engine sits centrally, keeping mass concentrated low. Red/white graphics pop against minimalist bodywork, though expect them to be quickly adorned with mud – a badge of honor in trials culture.

Engine & Performance: Taming the Two-Stroke Beast

The 79.6cc single-cylinder two-stroke is a masterpiece of controlled aggression. Unlike MX bikes that prioritize outright power, this mill focuses on tractable delivery perfect for technical sections:

• Carburetion: Dell’Orto PHBG 21 carb ensures crisp throttle response. Jet it leaner for competition or richer for beginners.
• Power Curve: Peak 10 HP arrives gradually, avoiding the “light switch” effect of race-oriented 80cc engines.
• Gearing: 6-speed box with ultra-low first gear crawls up impossible inclines, while sixth allows brief 65 km/h (40 mph) bursts between sections.

Riders will appreciate the wet multi-disc clutch – lighter pull than Beta’s adult models but with positive engagement. The 14.7:1 compression ratio demands premium 95 RON fuel mixed at 1.5% with synthetic oil.

Real-World Ride: The engine purrs docilely at low RPM, forgiving of clumsy throttle inputs. Crack it open mid-obstacle, and the Hitachi ignition system delivers a surge that’s exhilarating yet manageable. It’s like riding a scalpel – precise, not overwhelming.

Handling & Suspension: Where the Magic Happens

Trials live and die by chassis dynamics, and here the Evo 80 shines:

Front End:
- 33 mm hydraulic fork with 160-165 mm (6.3-6.5") travel (Junior/Senior)
- Stiffer springs on Senior model handle heavier riders
- Minimal stiction for delicate weight shifts

Rear Suspension:
- Monoshock with preload adjustment
- 146-150 mm (5.7-5.9") wheel travel
- Progressive damping eats up log hits without bouncing

Braking:
- 2-piston calipers bite 150 mm discs front/rear
- Modulated feel perfect for rear-wheel lockups in turns

The secret sauce? Geometry. With a 72-75° head angle (varies by model), the bike flicks between obstacles yet remains stable on off-camber climbs. The narrow 720-815 mm (28.3-32.1") width lets riders “hug” the bike through tight gaps.

Competition: How It Stacks Up

The Evo 80 faces fierce rivals in the youth trials niche:

1. GasGas TXT 80:
- Similar 80cc two-stroke
- Slightly softer suspension setup
- Heavier at 56 kg (123 lbs)
- Parts availability less consistent than Beta

2. Sherco ST 80:
- More aggressive power delivery
- Aluminum frame (lighter but less durable for crashes)
- Higher seat height: 650 mm (25.6")

3. Oset 24.0 Electric:
- Silent electric alternative (ideal for noise-restricted areas)
- Limited to 2-hour runtime vs Beta’s 2.5L (0.66 gal) fuel tank

Beta’s Edge:
- Unmatched dealer network via MOTOPARTS.store
- Progressive power curve suits skill development
- Steel frame withstands teenage “enthusiasm”

Maintenance: Keeping the Evo 80 in Peak Condition

As a MOTOPARTS.store specialist, here’s your maintenance cheat sheet:

1. Two-Stroke Upkeep:
- Fuel Mix: Use a 1:66 ratio (1.5%) with full-synthetic oil. Measure with a dedicated cup, not “eyeballing.”
- Carb Cleaning: Dell’Orto jets clog easily. Clean every 20 hours using MOTOPARTS.store’s ultrasonic kit (PN: MP-UCLEAN).
- Cooling System: Check coolant level monthly. Replace with ethylene glycol mix every 2 years.

2. Suspension TLC:
- Lubricate fork stanchions weekly with SEGURA Suspension Spray
- Senior model riders over 50 kg (110 lbs): Install stiffer spring (MP-BETA80-SPR)

3. Wear Items:
- Brake Pads: Replace when worn to 1 mm. Try MP-SINTERED pads for better bite.
- Chain: DID 428H chain lasts 6 months with regular MOTOPARTS Chain Wax application
- Tires: Michelin X11 (Senior) / IRC TR11 (Junior) grip best on wet rocks

4. Winter Storage:
- Drain carb bowl to prevent varnish
- Coat metal parts with MP-ANTICOR spray
- Store on stand to prevent tire flat-spotting

Conclusion: More Than a Bike, a Skills Catalyst

The Beta Evo 80 isn’t about specs – it’s about creating future champions. From backyard practice to national youth trials, this bike grows with the rider. The 2017-2022 generation’s improvements (better cooling, refined ergonomics) make it the most mature iteration yet. While not street-legal, it’s the ultimate playground predator.

At MOTOPARTS.store, we’re ready to support your Evo 80 journey with OEM and upgraded components. Whether you need a new clutch pack (MP-BETA-CLUTCH) or sticky tires for that next event, our curated selection keeps your Beta biting hard.

Ride hard, train smart, and let the Evo 80 be your teacher.

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Specifications sheet

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