Gas Gas TXT Trials 80 (2006-2010): A Lightweight Trials Machine Built for Precision

Introduction

The Gas Gas TXT Trials 80 series, spanning from 2006 to 2010, represents one of the most accessible entry points into the world of competitive trials riding. Designed specifically for younger riders or those new to the sport, this 72.5cc two-stroke machine combines lightweight agility with surprising technical capability. As part of Gas Gas's "Rookie" and "Cadet" lineup, it serves as a training platform that doesn't just coddle beginners but genuinely prepares them for higher-level competition. After spending time with a well-maintained 2009 TXT 80 Rookie model, it's clear why these bikes became favorites in the trials community – they're forgiving enough for mistakes but sharp enough to reward proper technique.

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Design Philosophy: Minimalist Efficiency

Weighing between 57-64 kg (125.7-141.1 lbs) depending on configuration, the TXT 80 feels more like an extension of your body than a conventional motorcycle. The elliptical chromium-molybdenum frame provides stiffness where needed while allowing just enough flex to absorb impacts during technical sections. What stands out immediately is the bike's proportions – with a 1,300 mm (51.2") wheelbase and 665 mm (26.2") seat height, it maintains a grown-up motorcycle feel while remaining manageable for developing riders.

The liquid-cooled 72.5cc engine sits centrally in the chassis, contributing to a neutral balance point that's crucial for trials maneuvers. Plastic components are kept to a minimum, with durable polypropylene guards protecting vulnerable areas. Color schemes evolved slightly through the years, ranging from the early red/black combinations to later red/grey iterations – all maintaining Gas Gas's signature high-visibility aesthetics.

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Engine Performance: Two-Stroke Precision

At the heart of the TXT 80 lies an air-cooled (later liquid-cooled) 72.5cc two-stroke engine with a 47.0 x 41.8 mm (1.9 x 1.6") bore/stroke ratio. The Dell'Orto PHBG 21 DS carburetor provides crisp throttle response, though it demands careful jetting for optimal performance in different climates. With a 6-speed gearbox and multi-disc hydraulic wet clutch, power delivery remains controllable even on slippery surfaces.

Key characteristics: - Peak power: ~10 HP (est.) at 8,500 RPM
- Torque: 8 Nm (5.9 lb-ft) at 6,500 RPM
- Fuel mixture: Requires 2.5% oil premix (1:40 ratio)

The engine's sweet spot lives between 5,000-9,000 RPM, producing a linear power band that prevents sudden surprises. Unlike larger trials bikes that can intimidate with abrupt power hits, the TXT 80 builds momentum gradually – perfect for practicing precise throttle control. The variable electronic ignition ensures reliable cold starts and consistent performance across temperature ranges.

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Suspension & Handling: Trials-Tuned Dynamics

Front Suspension
The 38mm Marzocchi adjustable forks (32mm on Cadet models) offer 177mm (7.0") of travel – substantial for an 80cc machine. Rebound damping can be tuned via clickers, crucial for maintaining composure during hard landings. Lighter riders will appreciate the ability to soften preload without specialized tools.

Rear Suspension
Gas Gas's variable progressivity system provides 164mm (6.5") of rear wheel travel. The rising rate linkage works particularly well on slow-speed obstacles, becoming progressively stiffer as the shock compresses. This design prevents bottoming-out during aggressive maneuvers while remaining supple over rocks and roots.

Wheels & Tires
- Rookie: 21" front / 18" rear (2.75-21 & 4.00-18 tires)
- Cadet: 19" front / 17" rear (2.50-19 & 3.50-17 tires)

The smaller Cadet wheels lower the center of gravity for newer riders, while Rookie sizing prepares for full-size competition bikes. Both configurations use trials-specific rubber with soft compounds for maximum grip.

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Braking System: Controlled Stopping Power

Front and rear single disc brakes strike an ideal balance between modulation and outright stopping force: - Front: 4-piston caliper (Rookie) / 2-piston (Cadet)
- Rear: Single-piston floating caliper

Lever feel is surprisingly refined for an entry-level bike. The system works best when kept clean – a recurring theme in trials maintenance. Aftermarket sintered pads from MOTOPARTS.store can improve bite in muddy conditions without sacrificing control.

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Competition: How It Stacks Up

The TXT 80's contemporaries included:

1. Beta Evo 80 (2008-2012)
2. Similar weight (60kg/132lbs)
3. Slightly more aggressive power delivery
4. Less adjustable suspension

5. Verdict: Beta appeals to faster learners; Gas Gas better for technical fundamentals

6. Sherco ST 80 (2007-2011)

7. Heavier at 65kg (143lbs)
8. Larger fuel tank (3.5L vs 3.0L)
9. More durable clutch components

10. Verdict: Sherco suits endurance events; Gas Gas excels in precision sections

11. Montesa Cota 4RT 80 (2009-)

12. Four-stroke engine (unique in class)
13. 15% heavier than TXT 80
14. Lower maintenance but less "trials-specific" feel
15. Verdict: Montesa for reliability; Gas Gas for authentic trials training

The TXT 80 distinguishes itself through its neutral handling balance and tunable suspension – qualities that help riders develop proper technique rather than relying on bike quirks.

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Maintenance: Keeping Your TXT 80 Competition-Ready

Critical Maintenance Points
1. Two-Stroke Oil: Always use JASO-FD certified oil at 2.5% mixture (40:1). Consider Motorex Cross Power 2T for optimal piston lubrication.
2. Air Filter: Clean every 15-20 hours using biodegradable cleaner. Upgrade to Twin Air foam filters for better particle filtration.
3. Clutch System: Replace mineral oil annually. MOTOPARTS.store offers rebuild kits for the hydraulic master cylinder.
4. Suspension Linkage: Grease every 30 hours. Install aftermarket grease fittings for easier servicing.
5. Exhaust Repacking: Required every 50-60 hours. Use FMF 2-Stroke Exhaust Packing to reduce noise and maintain backpressure.

Common Upgrade Paths
- Tires: Michelin X11 or IRC TR11 Competition for advanced riders
- Handlebar: Renthal Trials High Bend (758-02) improves leverage
- Footpegs: Fastway EVO 3 pegs increase grip angle
- Skid Plate: AXP Racing 6mm polyurethane guard protects engine cases

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Conclusion: A Foundation for Trials Mastery

The Gas Gas TXT Trials 80 generation remains relevant today not through technological complexity, but by excelling at the fundamentals. Its lightweight chassis teaches proper body positioning, the predictable powerband builds throttle discipline, and the adjustable suspension allows personalized setup as skills progress. While newer models have since emerged, these 2006-2010 bikes continue to serve as ideal platforms for both learning and competitive development.

For owners looking to refresh their TXT 80 or customize it to their riding style, MOTOPARTS.store carries everything from OEM-spec components to performance upgrades. Whether you're rebuilding the Marzocchi forks or upgrading to competition-spec brake pads, we've got the parts to keep your Gas Gas performing like a champion.

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Specifications sheet

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