1900mm Underbone Motorcycle 4 Speed Bike Lightweight Enduro Motorcycle 5500rpm

The YIPOWER 107cc Underbone Motorcycle is designed for everyday reliability, fuel efficiency, and effortless handling. Built with a horizontal single-cylinder engine and a semi-automatic 4-speed transmission, this model is ideal for urban commuting, short-distance transport, and daily utility riding.

With its lightweight structure, low seat height, and step-through frame design, this motorcycle offers easy accessibility and rider-friendly control, making it suitable for a wide range of users and road conditions.

Powered by a 107cc air-cooled single-cylinder engine, the YIPOWER underbone delivers smooth and efficient performance for daily riding. Producing 5.2 kW at 8,000 rpm and 7.2 N·m of torque at 5,000 rpm, the engine is tuned for responsive acceleration at low and mid-range speeds, ensuring comfortable riding in traffic and on local roads.

The CDI ignition system provides stable combustion and reliable starting, while the electric and kick start system offers added convenience in various riding situations.

Performance Highlights

• 107cc horizontal single-cylinder engine

• Max power: 5.2 kW @ 8,000 rpm

• Max torque: 7.2 N·m @ 5,000 rpm

• CDI ignition for dependable performance

• Electric & kick start

The motorcycle features a 4-speed semi-automatic transmission, eliminating the need for manual clutch operation and making it easier to ride in stop-and-go traffic. Power is delivered through a chain drive system, known for its durability, simplicity, and ease of maintenance.

This setup ensures smooth gear transitions and consistent power delivery, ideal for daily commuting and light cargo use.

The YIPOWER 107cc underbone is built on a compact and balanced chassis, offering stable handling and maneuverability. The telescopic hydraulic front fork absorbs road imperfections effectively, while dual rear spring shock absorbers provide stable support for both solo riding and loaded conditions.

With a wheelbase of 1,220 mm and a net weight of only 86 kg, the motorcycle feels light and agile, making it easy to navigate narrow streets and crowded urban environments.

Equipped with 17-inch wheels, this model uses spoked rims as standard, with optional aluminum wheels available for markets requiring a more modern appearance. The front 2.50-17 and rear 2.75-17 tires are optimized for durability and daily road use.

Both front and rear drum brakes provide simple, reliable braking performance with low maintenance requirements, well-suited for everyday commuting.

Designed with practicality in mind, this YIPOWER underbone includes both a rear carrier and center carrier, making it suitable for carrying daily goods or light cargo. With a maximum load capacity of 150 kg and a climbing ability of ≥27°, it performs confidently even when fully loaded.

The 740 mm seat height ensures easy mounting and comfortable riding for a wide range of riders, while the 110 mm ground clearance balances stability and everyday usability.

The motorcycle is equipped with a conventional and reliable lighting system, including:

• 12V 35W headlight

• Combined taillight (12V 21W / 10W)

• Front and rear turn signals (12V 5W)

• License plate light (12V 5W)

A 12V 5Ah maintenance-free battery supports consistent electrical performance with minimal upkeep.

• Proven underbone design for daily transportation

• Lightweight and easy to handle

• Fuel-efficient 107cc engine

• Semi-automatic transmission for rider convenience

• Practical carriers for everyday use

• Built with YIPOWER’s focus on durability and value