100cc 2-Stroke Motorized Bicycle Engine Conversion Kit with Tank

PRODUCT OVERVIEW

Upgrade a standard bicycle into a gas-powered bike with this complete 100cc 2-stroke motorized bicycle engine kit. Designed for most 26" and 28" frames, it includes engine, fuel tank, carburetor, drive components and controls for a full conversion.

KEY SPECIFICATIONS

• Engine type: 100cc 2-stroke, single cylinder, air-cooled
• Rated power: 2.5 kW / 5000 r/min (approx. 3 HP @ 5000 rpm)
• Max. power rotary speed: 3.5 kW / 5000 r/min (approx. 6–6.5 HP)
• Maximum speed: approx. 55–60 km/h (depending on bike, rider, and road conditions)
• Ignition: Capacitor discharge electronic ignition
• Transmission ratio: 16.4:1
• Compression ratio: 7:1
• Spark plug type: 4144
• Lubrication: 2-stroke engine oil premix
• Fuel tank capacity: 2 L
• Fuel consumption: approx. 2.5–3.5 L / 100 km
• Clutch type: Manual dry clutch
• Cooling: Natural air cooling
• Bearings: Needle rollers on both conrod ends, RS202 internal bearing
• Chain: Standard 415 chain
• Recommended fuel: Unleaded 91 petrol mixed with 2-stroke oil
• Recommended bike size: 26" or 28" bicycle
• Approx. top speed: up to 50 km/h (30 mph) in typical use
• Max load capacity (reference): 180 kg (396 lb)

FEATURES & BENEFITS

• Complete 100cc engine kit: Includes engine, fuel tank, silencer, carburetor, ignition, controls and hardware required for conversion.
• Fuel-efficient performance: Low fuel consumption; designed for extended range and economical daily use.
• Wide bike compatibility: Suitable for many 26" and 28" bicycles including mountain, road, cruiser and chopper-style frames (within frame size limits).
• Durable construction: Heavy-duty metal engine body, needle roller bearings and RS202 internal bearing for improved durability.
• Powerful output: Single-cylinder, air-cooled gasoline engine capable of speeds up to around 50 km/h (depending on conditions).
• Easy installation: Supplied with a detailed installation manual outlining assembly steps and adjustment guidance.

PACKAGE CONTENTS

• 1 × 100cc 2-stroke engine
• 1 × Spark plug
• 1 × Chain cover
• 1 × Chrome muffler
• 1 × Drive chain idler
• 1 × Push clutch lever
• 1 × Standard bike chain (415)
• 1 × CD ignition assembly
• 1 × Main bearings set
• 1 × Black teardrop fuel tank, 2 L
• 1 × Carburetor
• 1 × Magneto with kill switch (on throttle)
• 1 × Sprocket
• 1 × Twist throttle and cable with matching grip
• 1 × User manual

INSTALLATION NOTES

• Keep chain, chain wheel and sprocket in a straight line during installation.
• After installing the carburetor and throttle cable, turn the throttle to verify proper carburetor operation.
• After installing the clutch cable, hold the clutch lever and spin the rear wheel; it should rotate freely. Releasing the lever should stop the wheel.
• Adjust chain tension so that downward deflection is approximately 0.5–1 cm.
• Ensure spark plug, muffler and carburetor bolts are tightened securely.
• Check all wiring connections before first start-up.
• Engine break-in: use 2-stroke oil premix at approximately 8 oz per US gallon of fuel during the break-in period.

FITMENT & COMPATIBILITY

• Designed for many 26" and 28" bicycles.
• Not suitable for bikes with a front frame width greater than 50 mm.
• Always confirm frame space, mounting clearances and component compatibility before installation.

SAFETY & LEGAL NOTICE

• Always wear an appropriate, approved helmet and protective gear when riding.
• Use adequate lighting if operating in low-visibility conditions where permitted.
• Local regulations may restrict or prohibit use of motorized bicycles on public roads and paths. Check all applicable laws and use on private property or off-road where required.
• This product must be installed and used responsibly. Regularly inspect fasteners, fuel lines, chain and controls.

DISCLAIMER

• Dimensions and performance figures are approximate and may vary with installation, rider weight and conditions.
• Minor colour variations may occur due to monitor and lighting differences.
• Professional installation is recommended if you are unfamiliar with engine or bicycle mechanics.