Full telemetry data for the 2026 Piaggio Liberty 125 S: real GPS top speed, 0-50 km/h acceleration, 50-0 km/h stopping distance, real mpg, and competitor comparison.
Full telemetry results and instrumented test figures for the 2026 Piaggio Liberty 125 S: GPS top speed, acceleration runs, torque delivery, real-world fuel economy, and emergency braking distances benchmarked against its primary market rivals.
Technical & Telemetry Data Sheet
Peak Power: 11 hp (8.1 kW) @ 8,250 rpm
Peak Torque: 10.7 Nm @ 6,500 rpm
Real Top Speed (GPS): 60.3 mph / 97 km/h (62–63.4 mph / 100–102 km/h indicated)
0–31 mph (0–50 km/h) Acceleration: 5.1 seconds
31–0 mph (50–0 km/h) Braking Distance: 39.7 feet / 12.1 meters
Average Test Fuel Economy: 70.5 mpg US / 84.7 mpg UK / 3.33 L/100km (30 km/L)
Eco-Riding Fuel Economy: 75.2 mpg US / 90.3 mpg UK / 3.12 L/100km (32 km/L)
Kerb Weight: 273.3 lbs / 124 kg
GPS Top Speed and High-Speed Stability
The 124cc air-cooled 4-stroke i-Get single-cylinder engine develops 11 hp and 10.7 Nm of torque. Tested with our GPS telemetry gear, the Liberty 125 S delivered performance aligned with the top performers in the air-cooled 125cc segment.
Sweet-Spot Cruising Speed: 46.6–52.8 mph GPS (75–85 km/h) — 50–56 mph indicated —, a range where the single-cylinder engine operates with smooth, vibration-free delivery.
GPS Top Speed: 60.3 mph (97 km/h) actual GPS, recorded on a flat test strip (against an indicated speedometer reading of ~62.7 mph / 101 km/h, representing a tight 4% speedo margin).
Incline & Two-Up Performance: On steep gradients or carrying a passenger, real-world momentum settles around 43.5–44.7 mph GPS (70–72 km/h). (Note: Under updated Italian road regulations, adult riders on 120cc+ thermal motorcycles can access highways, though speed reserves at maximum velocity require careful lane planning).
Acceleration, In-Gear Punch, and CVT Calibration
The automatic CVT transmission is tuned to deliver immediate off-the-line response from traffic lights:
0–31 mph (0–50 km/h) Acceleration: 5.1 seconds. One of the fastest sprint times recorded in the air-cooled high-wheel category.
0–50 mph (0–80 km/h) Acceleration: 12.1 seconds. Power delivery remains linear and elastic right up to the 50 mph mark.
In-Traffic Roll-On: Re-opening the throttle at low city speeds yields crisp response without drivetrain judder, ensuring immediate acceleration for short overtakes.
Braking Distances and ABS System Tuning
The Piaggio Liberty 125 S employs a hybrid braking package featuring a front hydraulic disc with single-channel ABS paired with a traditional mechanical rear drum.
Stopping Distance from 31 mph to 0 (50–0 km/h): 39.7 feet (12.1 meters)
Stopping Distance from 50 mph to 0 (80–0 km/h): 99.1 feet (30.2 meters)
Lever Pressure & ABS Behavior: Achieving sharp stopping distances within these measured parameters requires a firm, physical squeeze on the brake levers. The front ABS threshold is well-calibrated, avoiding premature intervention on dry pavement.
Real-World Fuel Economy & Range
The thermal efficiency of the i-Get engine keeps routine daily operating costs minimal (6-liter / 1.58-gallon fuel tank capacity):
Dense City Traffic: 61.2 mpg US (73.4 mpg UK / 3.85 L/100km — 26 km/L) — Estimated Range: ~96 miles (155 km)
Open Road / Eco Riding: 75.2 mpg US (90.3 mpg UK / 3.12 L/100km — 32 km/L) — Estimated Range: ~118 miles (190 km)
Combined Test Average: 70.5 mpg US (84.7 mpg UK / 3.33 L/100km — 30 km/L) — Real-world average tank range: ~112 miles (180 km)
GPS Top Speed Comparison: Piaggio vs. Key Rivals
Here is how the 2026 Piaggio Liberty 125 S stacks up against real-world GPS telemetry recorded by the Crazywheels test team across the 125cc high-wheel class:
Honda SH125i (Liquid-Cooled): ~64.6 mph (104 km/h) GPS
SYM Symphony 125 2026 (Air-Cooled): 60.8 mph (98 km/h) GPS
Piaggio Liberty 125 S 2026 (Air-Cooled): 60.3 mph (97 km/h) GPS
Kymco Agility 16+ 125 (Air-Cooled): ~59.0 mph (95 km/h) GPS
Crazywheels Performance Verdict
The 2026 Piaggio Liberty 125 S confirms its position at the top of the air-cooled high-wheel tier for top speed and off-the-line acceleration. Its quick 0–31 mph (0–50 km/h) sprint time makes it one of the most effective tools for slicing through congested city traffic, fully compensating for a braking system that requires a firm hand to extract its full stopping power.