Ever dreamed of zipping past traffic on your bicycle, feeling the wind in your hair without breaking a sweat? Many people want the speed of a scooter but love the simplicity and feel of a bicycle. That’s where motorised bicycle kits come in! They are a fantastic way to upgrade your ride. However, looking at all the different kits available can feel like trying to read a map in the dark.
Choosing the right kit brings up tough questions. Which engine is best for hills? How hard is the installation? Will it even fit my bike? These worries can stop you from starting your motorised bike project. You want power and reliability, not frustration and wasted money.
Don’t worry! This guide cuts through the confusion. We will explain exactly what you need to know before you buy. By the end of this post, you will understand the key features, know which kits fit your needs, and feel confident in your purchase. Get ready to turn your regular bike into an awesome, powered machine!
Top Motorised Bicycle Kit Recommendations
No. 1
IMAYCC 80cc Bicycle Engine Kit 2 Stroke Motorized Bike Motor Conversion Kit Fit for 26-28" Bikes(80CC Black)
- 【DIY-Friendly Installation with Support】The rider will need basic tools and mechanical aptitude, and about 2-4 hours of installation and fine tuning. We strongly recommend reviewing our detailed instructions and searching "IMAYCC 80cc bicycle engine kit" on YouTube before starting. This prep work significantly smoothens the process and helps avoid common installation hurdles
- 【Power Up Your Ride: 80cc Performance】Experience the thrill of enhanced speed and range. Come with a complete 80cc 2-stroke engine kit, delivering power/speed (2.1Kw/5000rpm), converting your standard bicycle into a durable, long-distance capable machine. Perfect for extending your outdoor adventures and commuting with ease
- 【Engine Specs & Components】Engine type: single-cylinder, air-cooled, 2-stroke engine with CDI ignition and foot pedal start. Kit includes a rugged 44-tooth drive sprocket, 110 knots chain teeth, and 36-spoke wheel for strength. Engineered for consistent performance
- 【Broad Bike Compatibility】 Designed to fit most common 26-28" wheel bicycles featuring a V-frame design (ideal for Mountain, Cruiser, Road styles). Critical Requirement: Ensure at least 10 inches of clearance between your bike's bottom bracket and the top bar for proper fitment
- 【2.5L Black Teardrop Fuel Tank】For optimal performance and engine longevity: Use 90# fuel mixed 16:1 (fuel:oil) initially, shifting to 20:1 after the 500km break-in period. Driving on a smooth road with a speed of 20-25km/h, the fuel consumption is 2-2.5L per 100km
No. 2
IMAYCC Bike Motor Kit 80cc Motorized Bike Kit 2 Stroke Gas Bicycle Engine Conversion Kit Fit for 26-28" Bikes (80CC Silver)
- 【Installation Notes】The rider will need basic hardware skills and tools, and about 2-4 hours of installation and fine tuning. If you are inexperienced or installing engine kit for the first time, please read our instructions and search "IMAYCC 80cc bicycle engine kit" on Youtube before installation, it will give you a great help and solve a lot of problems during installation
- 【80cc Bicycle Engine Kit】Come with a complete engine kit, 2-stroke 80cc single cylinder gasoline engine, wired digital computer, the engine power/speed is 2.1Kw/5000rpm, so you can enjoy a faster riding speed, the upgraded bicycle has better durability and supports long-distance riding, make it easier to use outdoors
- 【80cc Bike Motor Kit】Engine type: single-cylinder, air-cooled, two-stroke. Starting method: foot pedal starting. Ignition method: CDI ignition. Number of sprocket teeth: 44 teeth. Number of chain teeth: 110 knots. Spokes: 36
- 【Bicycle Motor Compatibility】IMAYCC bike engines are suitable for most 26-28" wheeled bikes (mountain bikes, cruisers, motorcycles, road bikes) with V-frames. There should be 10" and more clearance between the bottom bracket and top bar of the frame, especially 26" bike. Please confirm the installation space in advance, alternatively visit the ‘Contact Seller'
- 【2.5L Black Teardrop Fuel Tank】Fuel type: 90#, Mixing Ratio of Fuel and engine Oil: 16:1 for new equipment, 20: 1 the run-in period (after running 500km). Driving on a smooth road at a speed of 20-25Km/h, fuel consumption of 2-2.5L per 100Km
No. 3
IMAYCC Bike Motor Kit 80cc Motorized Bike Kit 2 Stroke Gas Bicycle Engine Conversion Kit Fit for 26-28" Bikes(80CC Black)
- 【Installation Notes】The rider will need basic hardware skills and tools, and about 2-4 hours of installation and fine tuning. If you are inexperienced or installing engine kit for the first time, please read our instructions and search "IMAYCC 80cc bicycle engine kit" on Youtube before installation, it will give you a great help and solve a lot of problems during installation
- 【80cc Bicycle Engine Kit】Come with a complete engine kit, 2-stroke 80cc single cylinder gasoline engine, wired digital computer, the engine power/speed is 2.1Kw/5000rpm, so you can enjoy a faster riding speed, the upgraded bicycle has better durability and supports long-distance riding, make it easier to use outdoors
- 【80cc Bike Motor Kit】Engine type: single-cylinder, air-cooled, two-stroke. Starting method: foot pedal starting. Ignition method: CDI ignition. Number of sprocket teeth: 44 teeth. Number of chain teeth: 110 knots. Spokes: 36
- 【Bicycle Motor Compatibility】IMAYCC bike engines are suitable for most 26-28" wheeled bikes (mountain bikes, cruisers, motorcycles, road bikes) with V-frames. There should be 10" and more clearance between the bottom bracket and top bar of the frame, especially 26" bike. Please confirm the installation space in advance, alternatively visit the ‘Contact Seller'
- 【2.5L Black Teardrop Fuel Tank】Fuel type: 90#, Mixing Ratio of Fuel and engine Oil: 16:1 for new equipment, 20: 1 the run-in period (after running 500km). Driving on a smooth road at a speed of 20-25Km/h, fuel consumption of 2-2.5L per 100Km
No. 4
IMAYCC Bike Motor Kit 100cc Motorized Bike Kit 2 Stroke Gas Bicycle Engine Conversion Kit Fit for 26-28" Bikes (100CC Black)
- 【Installation Notes】The rider will need basic hardware skills and tools, and about 2-4 hours of installation and fine tuning. If you are inexperienced or installing engine kit for the first time, please read our instructions and search "IMAYCC Bicycle Engine Kit" on Youtube before installation, it will give you a great help and solve a lot of problems during installation
- 【100cc Bicycle Engine Kit】Come with a complete engine kit, 2-stroke single cylinder gasoline engine, the engine power/speed is 2kw/6500rpm, so you can enjoy a faster riding speed, the upgraded bicycle has better durability and supports long-distance riding, make it easier to use outdoors
- 【100cc Bike Motor Kit】Engine type: single-cylinder, air-cooled, two-stroke, starting method: foot pedal starting, Ignition method: CDI ignition, number of sprocket teeth: 44 teeth, number of chain teeth: 110 knots, Spokes: 36
- 【Bicycle Motor Compatibility】IMAYCC bike engines are suitable for most 26-28" wheeled bikes (mountain bikes, cruisers, motorcycles, road bikes) with V-frames. There should be 10" and more clearance between the bottom bracket and top bar of the frame, especially 26" bike. Please confirm the installation space in advance, alternatively visit the ‘Contact Seller'
- 【3L Black Teardrop Fuel Tank】Fuel type: 90#, Mixing Ratio of Fuel and engine oil: 16:1 for new equipment, 20: 1 the run-in period (after running 500km). Driving on a smooth road with a speed of 35-40km/h and a maximum speed limit of 50km/h, the fuel consumption is 2.5L per 100km
No. 5
CUBELLIN Upgraded 100cc Bicycle Engine Kit 2 Stroke Motorized Bike Engine Kit Gas Motorized Bicycle Engine Kit Super Fuel-efficient Bike Motor Kit Fit for 26"-28" Bikes, 36-Tooth Sprocket Full Set
- 36 Tooth Bicycle Engine Kit: The 36 Teeth Bicycle Engine Kit can convert a regular bicycle into a motorcycle AND includes all the parts and accessories. Ideal for upgrading your regular bike to an electric bike.
- Super Fuel-Efficientt: The 100cc motorized bicycle kit is powerful and durable, with a top speed of 48km/h. Low fuel consumption, 150 miles per gallon. Max. Load capacity:200kg（440lb).
- Double Strength and Safety: 4 bolts attach the engine to your bike frame and this Bicycle Motor Kit comes are 8mm vs the standard 6mm. That means the mounts are twice as strong and twice as secure. The aluminum engine body, iron fuel tank, and iron chain have better durability, and when combined with sandblasting, painting, and shot blasting treatment, they can provide stable operation for a long time.
- Complete Bicycle Motor Kit: Our package includes all the parts to convert your bicycle into a motorcycle, meeting your needs with just one purchase! This bicycle engine kit is more suitable for people with lower budgets or only short-term needs for motorcycles.
- Upgraded Tunable High Performance Carburetor: Choke lever on the handlebars, Main jet. (Can be re-jetted), Pilot jet, Copper oil needle , Idle RPM Screw, Idle Air Screw and has an Internal choke circuit that delivers more fuel with the choke on, instead of restricting air. 100CC Bicycle Engine Kit Great for cold weather starts!
No. 6
Afranti Updated 80cc Bicycle Engine Kit 2 Stroke Motorized Bike Motor Kit for 26" to 28" Bicycles Petrol Gas Powered Bicycle Motor Kit Upgrade with Digital Speedometer
- CONVERTING YOUR BIKE TO MOTORBIKE: The 2-Stroke Bicycle Gasoline Engine Motor Kit includes all the parts and accessories needed to convert a regular bike into a gasoline-powered motorcycle. Ideal to upgrade the regular bike to a motorized bicycle. Fits most 26" or 28" wheeled bikes with V-frame, such as Mountain bikes, Road bikes, Gravel Bikes, Beach bike, etc
- UPGRADED PERFORMANCE FOR YOUR SUPREME RIDING EXPERIENCE: For screw and bolts easily broken, we have upgraded premium quality hex socket screw and bolts to improve the performance. Come with a digital speedometer, enjoy a faster riding speed, The upgraded bicycle has better durability and supports long-distance riding. Make it easier to use outdoors
- MOTORIZED BIKE KIT POWER: 2.8kw/6000r/min; Top Speed: 50km/h; Fuel Economy: 3.8L/km; Fuel Type: #90, #92, #95; Mixing Ratio of Fuel and engine Oil: 16:1 for new sets breaking time, 20:1 after running 500KM. Please use premium quality oils to prolong engine life. And add some lubricant into the air cylinder before starting
- EASY TO ASSEMBLE: Notes: The kit needs basic hardware skills & tools, and it will around 2-3 hours for installation and fine tuning adjustments. If you do not have experience or the first time on installing the motor kit, before installing, please kindly read our instruction and search "80cc bicycle engine kit"video, it will give a big help and troubleshoot a lot of issues during installation process
- PERFECT AFTER-SALES SERVICE: If you are not satisfied with the product, please send us an email, and we will propose a satisfactory solution within 24 hours. You can buy it with confidence
No. 7
IMAYCC 100cc Bicycle Engine Kit 2 Stroke Motorized Bike Motor Conversion Kit Fit for 26-28" Bikes(100CC Black)
- 【DIY-Friendly Installation with Support】The rider will need basic tools and mechanical aptitude, and about 2-4 hours of installation and fine tuning. We strongly recommend reviewing our detailed instructions and searching "IMAYCC Bicycle Engine Kit" on YouTube before starting. This prep work significantly smoothens the process and helps avoid common installation hurdles
- 【Power Up Your Ride: 100cc Performance】Experience the thrill of enhanced speed and range. Come with a complete 100cc 2-stroke engine kit, delivering power/speed (2kw/6500rpm), converting your standard bicycle into a durable, long-distance capable machine. Perfect for extending your outdoor adventures and commuting with ease
- 【Engine Specs & Components】Engine type: single-cylinder, air-cooled, 2-stroke engine with CDI ignition and foot pedal start. Kit includes a rugged 44-tooth drive sprocket, 110 knots chain teeth, and 36-spoke wheel for strength. Engineered for consistent performance
- 【Broad Bike Compatibility】 Designed to fit most common 26-28" wheel bicycles featuring a V-frame design (ideal for Mountain, Cruiser, Road styles). Critical Requirement: Ensure at least 10 inches of clearance between your bike's bottom bracket and the top bar for proper fitment, especially 26" bike. Please confirm the installation space in advance, alternatively visit the ‘Contact Seller'
- 【3L Black Teardrop Fuel Tank】For optimal performance and engine longevity: Use 90# fuel mixed 16:1 (fuel:oil) initially, shifting to 20:1 after the 500km break-in period. Driving on a smooth road with a speed of 35-40km/h and a maximum speed limit of 50km/h, the fuel consumption is 2.5L per 100km
No. 8
HZOPUTLH 100CC 4-Stroke Gasoline Engine Set, Bicycle Engine Kit (Belt Model) Motorized Bike Motor Kit, Hand Start Single Cylinder Motorized Bike Conversion Kit, Black, Silver
- DURABLE & STURDY: The aluminum engine shell, iron fuel tank with baking paint, a 415# steel chain with shot blasting process, and a nylon cover on the side of the engine, achieving a max bearing capacity of 440 pounds and ensuring superior performance and a longer lifespan.
- STRONG POWER: This 4-stroke gasoline engine boasts a robust 3.5HP horsepower, a displacement of 100cc, a rated power of 2kw/h, and a max rotating speed of 3600RPM, which provides you with strong power and accelerates your bike to a max speed of 50km/h.
- LARGE FUEL TANK: This bicycle engine kit measures 11.41*5.9*6.29 inches with a large capacity of 0.52 gallons, allowing this motorized bike motor kit to work for a long time. You don't need to fill the tank frequently, which is convenient.
- LOW FUEL CONSUMPTION: The overhead valve is used, which effectively helps reduce carbon buildup and dramatically improves fuel savings. The air filter also improves air filtration performance and reduces wear, achieving a fuel consumption of around 0.66 gallons/100km and saving much money on fuel costs.
- WIDE APPLICATION: This 4-stroke gasoline engine set is suitable for mountain bikes, road bikes, gravel bikes, beach bikes, etc. with large triangular empty frames.
Your Guide to Choosing the Best Motorised Bicycle Kit
Thinking about turning your regular bike into a speedy motorized machine? A motorised bicycle kit can make your commute easier or your weekend rides more fun. But with so many options available, how do you pick the right one? This guide will help you choose the perfect kit.
Key Features to Look For
When shopping, look closely at these important parts of the kit.
Engine Type and Power (CCs)
- Engine Size: Kits usually come in sizes like 48cc, 66cc, or 80cc. Bigger numbers mean more power. More power helps you climb hills faster.
- Two-Stroke vs. Four-Stroke: Most common kits are two-stroke. They are lighter and simpler to install. Four-stroke engines are quieter and use less gas, but they are heavier and more complex.
Fuel Tank and Range
- Tank Size: A larger fuel tank means you ride farther between fill-ups. Check the tank size; bigger tanks offer better range for long trips.
- Fuel Efficiency: Good kits use less gasoline per mile. This saves you money over time.
Ignition and Starting System
- Look for a reliable magneto or electronic ignition system. This makes starting the engine easier. Some kits include a push-start mechanism.
Important Materials and Construction
The quality of the parts directly affects how long your kit lasts.
Engine Block and Components
- Cylinder and Piston: These parts must be made from strong, durable metal, usually aluminum alloy. High-quality casting prevents cracks and overheating.
- Gears and Sprockets: Ensure the drive chain and sprockets are made of hardened steel. Weak metal gears break easily, especially under heavy use.
Mounting Hardware
- All bolts, clamps, and brackets should be corrosion-resistant. Stainless steel or high-grade coated metal prevents rust, keeping the engine securely attached to your bike frame.
Factors That Improve or Reduce Quality
Not all kits perform the same. Certain design choices make a big difference in your riding experience.
What Boosts Quality?
- Good Cooling Fins: Engines create heat. Kits with large, well-designed cooling fins dissipate heat better. This keeps the engine running smoothly and lasts longer.
- Upgraded Carburetor: A quality carburetor delivers the right mix of air and fuel. Better carbs lead to easier starting and smoother running at all speeds.
What Lowers Quality?
- Cheap Plastic Parts: Avoid kits that use too much thin plastic for fuel lines or covers. These parts often crack in the sun or from engine vibration.
- Poor Welding: Check the welds on the mounting brackets. Sloppy or weak welds can fail while you are riding.
User Experience and Use Cases
Think about how you plan to use your motorized bike.
Commuting vs. Recreation
- Daily Commuters: If you ride to work every day, prioritize reliability, good fuel economy, and easy maintenance. A kit with an easy-to-access spark plug is helpful.
- Weekend Fun Riders: If you want speed for occasional fun rides, you might choose a higher CC kit. Remember that higher power often means more noise and vibration.
Installation Difficulty
Some kits fit almost any standard bicycle frame. Others require specific frame shapes (like a V-frame). Read reviews to see how difficult the installation process is. If you are a beginner mechanic, choose a kit known for clear instructions and good customer support.
Frequently Asked Questions (FAQ) about Motorised Bicycle Kits
Q: How fast can these kits go?
A: Most standard 66cc or 80cc kits can reach speeds between 25 mph and 35 mph, depending on the bike weight, rider weight, and road conditions. Always check your local laws regarding motorized bicycle speed limits.
Q: Do I need a special bicycle to install a kit?
A: Most kits fit standard “cruiser” or “beach cruiser” style bikes with a standard diamond frame. You need enough space inside the main triangle of the frame for the engine and the fuel tank.
Q: Are these kits street legal?
A: Legality varies greatly by state or country. In many places, they are treated like mopeds or low-speed motorized bicycles. You must check your local Department of Motor Vehicles (DMV) rules before riding on public roads.
Q: What is the typical gas mixture for a two-stroke engine?
A: Two-stroke engines require oil mixed directly with the gasoline. The most common ratio is 16:1 or 32:1 (gasoline to two-stroke oil). Always use the specific oil recommended by the kit manufacturer.
Q: How much maintenance do these engines need?
A: They require regular maintenance similar to a small lawnmower. You should check the spark plug, clean the carburetor, and adjust the chain tension frequently. After the first few hours of use, you must “break in” the engine carefully.
Q: Will the engine damage my bike frame?
A: If installed correctly using the provided mounting hardware, the engine weight is usually distributed safely. However, you might need to upgrade your brakes, as the added speed requires better stopping power.
Q: What is the difference between a friction drive and a chain drive kit?
A: A chain drive kit connects directly to the rear wheel sprocket, like a motorcycle. A friction drive kit uses a roller that presses against the tire to turn the wheel. Chain drives are generally more reliable and powerful.
Q: How noisy are these motorized bike kits?
A: Two-stroke kits can be quite loud, especially when accelerating hard. Mufflers are included, but they still produce more noise than a standard bicycle.
Q: Can I use regular gasoline?
A: It is best to use the octane rating recommended by the manufacturer, usually 87 octane or higher. Never use diesel fuel.
Q: What should I do if the engine won’t start?
A: First, check the fuel mixture and the spark plug. Ensure the choke is set correctly when starting cold. If it still won’t start, the carburetor might need adjustment or cleaning.