HappyRun | F18 Mid-Drive Electric Dirt Bike for Teens & Adults

HappyRun F18 6000W Mid-Drive Electric Dirt Bike - 60V 30Ah Full Suspension Off-Road E-Bike

The F18 is the most aggressive mid-drive in HappyRun's lineup. A 6000W peak motor produces 245 Nm of torque - the highest of any Tank or F-series model - fed through a three-gear transmission that caps at 46 mph in top gear. Gear 1 limits output to 17 mph for technical sections and low-speed maneuvering. Gear 2 opens up to 28 mph for trail cruising. Gear 3 unlocks the full 46 mph top speed for open stretches and fast descents. That three-step structure lets you match power delivery to the terrain instead of managing a single overwhelming output band. Full suspension pairs a hydraulic front fork with an oil-spring rear damper - a step above basic coil shocks - for progressive, controlled absorption over rocks, drops, and high-speed rough terrain.

The frame sits low with a 26.5-inch seat height, the lowest in the HappyRun lineup, making it accessible to riders as short as 3'11" while keeping the center of gravity planted for taller riders up to 6'1". A 60V 30Ah lithium battery (1800 Wh total capacity) delivers up to 60 miles per charge on the higher-voltage platform that resists sag under sustained load. Staggered moto-format tires - 70/100-17 front, 90/100-14 rear - run aggressive off-road tread for grip on loose dirt, mud, and gravel. Hydraulic disc brakes handle the deceleration side, and an integrated lighting system covers visibility with a long-range headlight and high-visibility taillight. A high-contrast color display keeps ride data readable in direct sunlight. Everything on this bike is built around one idea: maximum off-road capability in the shortest, lightest chassis possible.

Features

• 6000W Peak Mid-Drive Motor (245 Nm Torque) - The highest torque output in the HappyRun lineup. Center-mounted motor delivers power through the drivetrain for balanced weight distribution and superior climbing traction on steep, loose terrain.
• 3-Gear Transmission (17 / 28 / 46 mph) - Three electronically limited speed modes let you match power to conditions. Gear 1 (17 mph) for technical trail work and learning. Gear 2 (28 mph) for general trail riding. Gear 3 (46 mph) for wide-open terrain and experienced riders.
• 60V 30Ah Lithium Battery (1800 Wh) - High-density cells on a 60V platform deliver up to 60 miles per charge with more consistent power output throughout the discharge cycle compared to 48V systems.
• Full Suspension with Oil-Spring Rear Damper - Front hydraulic fork provides progressive compression damping over trail impacts. Rear oil-spring damper offers more controlled, consistent rebound than basic coil shocks, maintaining tire contact on rough terrain at speed.
• Hydraulic Disc Brakes - Heavy-duty hydraulic calipers deliver consistent, fade-resistant stopping power across both wheels. Progressive lever feel provides precise modulation from trail-speed scrubbing to full emergency stops at 46 mph.
• Staggered Off-Road Tires (70/100-17 Front, 90/100-14 Rear) - Moto-format sizing with aggressive tread patterns. Larger 17-inch front wheel rolls over obstacles and provides steering stability, while the wider 14-inch rear maximizes traction and drive grip on loose surfaces.
• Integrated Lighting System - Long-range headlight illuminates the trail ahead for low-light and after-dark riding. High-visibility taillight ensures you remain visible to other trail users and traffic from behind.
• High-Contrast Color Display - Sunlight-readable screen shows speed, battery level, gear selection, trip distance, and ride data without glare washout. Mounted for quick reads without shifting eye line from the trail.
• 26.5-Inch Seat Height (Lowest in Lineup) - The lowest seat in the HappyRun range accommodates riders from 3'11" to 6'1". Low center of gravity improves stability at speed and makes the bike easier to manage at stops and during low-speed technical maneuvering.

Specifications

• Motor: 6000W peak mid-drive
• Torque: 245 Nm
• Transmission: 3-gear (17 mph / 28 mph / 46 mph)
• Battery: 60V 30Ah (1800 Wh) high-density lithium-ion
• Top Speed: Up to 46 mph (Gear 3)
• Range: Up to 60 miles
• Max Load Capacity: 300 lbs
• Brakes: Heavy-duty hydraulic disc (front and rear)
• Front Tire: 70/100-17 off-road
• Rear Tire: 90/100-14 off-road
• Suspension: Full - hydraulic front fork, oil-spring rear damper
• Display: High-contrast color, sunlight-readable
• Lighting: Long-range headlight, integrated taillight
• Total Length: 64.9 in (1648 mm)
• Handlebar Height: 35.6 in (904 mm)
• Wheelbase: 45.4 in (1153 mm)
• Seat Height: 26.5 in (673 mm)
• Recommended Rider Height: 3'11" - 6'1" (120 - 185 cm)
• Frame Size: One size fits most