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The 8 Best bicycle engine kits of 2025

Are you trying to find bicycle engine kits among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling bicycle engine kits on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 10 hours of research and did 28 bicycle engine kits tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best bicycle engine kits you can buy today

No. 1
IMAYCC Bike Motor Kit 80cc Motorized Bike Kit 2 Stroke Bicycle Engine Kit with Wired Digital Computer Fit for 26-28' Bikes (Silver)
700 Consomer Reviews
IMAYCC Bike Motor Kit 80cc Motorized Bike Kit 2 Stroke Bicycle Engine Kit with Wired Digital Computer Fit for 26-28" Bikes (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
  • 【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. 2
YUNLAIGOTOP 100cc Bicycle Motor Kit, 4-Stroke Bicycle Gasoline Engine Motor, Motorized Bicycle Kit with Double Belt Drive & Air-Cooling, Bike Engine Kit for Bikes (with Belt)
  • 【44 TOOTH BIKE MOTOR KIT】- The 4 stroke bicycle engine kit converts your bike into an e-bike with a maximum speed of 3600rpm, which is efficient and convenient, allowing you to fully enjoy riding during commuting and short trips
  • 【HIGH QUALITY & DURABLE】- The motorized bike kit is made of high-performance aluminum alloy body, which the gas bike kit is strong and durable with metallic luster. The engine casing is made of strong and durable plastic that covers the engine body and fully protects the engine from damage
  • 【4 STROKE BICYCLE ENGINE KIT】- The bicycle motor kit are more stable, reliable and quieter than two-stroke engines. At the same time, the 56mm bore cylinders increase load carrying capacity and lower operating temperatures, making them easier to start while providing continuous output over a range of speeds
  • 【BIKE MOTOR KIT】- About bicycle engine kit is Type: Forced Air Cooling, 4-Stroke, OHV, Single-cylinder, Inclined by 25 Degrees; Starting System: Recoil Start; Max Output: 3HP; Rated Power: 2KW/3600rpm; Max. Torque: 4.5N.m/2500rpm; Fuel Tank Capacity: 1.6L/0.42gal; Min. Stable Speed Unloaded: 3600rpm; Displacement: 100cc
  • 【CUSTOMER SERVICE】- We aim to provide quality products and services. If you have any problems, please feel free to contact us. We will reply and solve the problem for you as soon as possible
No. 3
Afranti Bicycle Motor Kit 80cc, Motorized Bicycle Engine Kit 2 Stroke Petrol Gas Motor Engine Kit Fits Most 26" or 28" Bikes with V-Frame
  • Afranti 80cc Bicycle Engine Kit - Engine Type: Single cylinder,air-cooled,2-stroke.For screw and bolts easily broken, we have upgraded premium quality hex socket screw and bolts to improve the performance
  • Afranti 80cc bike motor kit fits Most 26" or 28" Wheeled Bikes (Mountain, Cruiser, Chopper, Road) with V-frame. The frame should have 9-11" of clearance between the bottom bracket and top bar, and the diameter of the frame tubes should be around 1" (25-29mm)
  • Motorized bike kit Power: 5-6 HP (horse power); Top Speed: 25-35 MPH (miles per hour); Fuel Economy: 100-150 miles per gallon; Fuel Type:Gasoline 93#; Mixing Ratio of Fuel and engine Oil: 16:1 for new sets breaking time, 25:1 after running 300KM. 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. 5
Ktaxon 80cc Bicycle Engine Kit, 2-Stroke Motorized Bicycle Kit Fit for 26' Bikes, Petrol Gas Motor Kit Engine Set with Super Fuel-efficient, Powerful Engine(Black)
62 Consomer Reviews
Ktaxon 80cc Bicycle Engine Kit, 2-Stroke Motorized Bicycle Kit Fit for 26" Bikes, Petrol Gas Motor Kit Engine Set with Super Fuel-efficient, Powerful Engine(Black)
  • 【POWERFUL ENGINE】The carefully selected premium components to make our gasoline engine can start quicker. The electronic igniter of this bike's gasoline engine allows you safer to use it while being super fuel-efficient.
  • 【STRONG DURABILITY】Heavy duty metal engine body for better durability. Perfectly fits for most type 26" and 28" bikes with V-frame, such as mountain bikes, road bikes, commuter bikes and son on.
  • 【RUNS QUIIETLY】The engine kit only has a slight noise and slight vibration when you use it. You can use it in any outdoor environment without having to worry about noise nuisance.
  • 【STRONG PRACTICALITY】Equipped with all the needed hardware allow you easier to convert regular bicycles into electric bicycles. Of course, if you want to ride only with your feet, just need to stop your engine, and use the original equipment of your bike.
  • 【EASY TO INSTALL】The supplied product manual contains every detail of the assembly steps. Maybe you need some practical experience and some tools, but the installation is not too complicated. Our bicycle engine kit can help you have an electric bike first.
No. 6
Afranti 100cc 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 "100cc 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. 8
PEXMOR 100cc Bicycle Engine Bike Motor Kit, Upgraded 2/2.5L Fuel Tank 2 Stroke Gas Motorized Bike Conversion Kit, Gasoline Petrol Bicycle Motor Refit Full Set for 26-28" Bikes with V-Frame
  • 【POWERFUL ENGINE】- The 2-stroke 100CC heavy duty metal engine is powerful and durable.The mode of engine is single cylinder, air-cooling, two strokes.Max speed can reach up to 45km/h,which is the fastest but safe speed you can get.Max Power: 2.3kw/6000r/min.Max Load Capacity: 150KG.
  • 【FUEL-EFFICIENT】- With 2L fuel tank.The fuel consumption per 100 kilometers is only 3-3.5L,which is super fuel-efficient.Fuel Type: 90# 92# 95#.Mixing Ratio Fuel Oil and Engine Oil:16:1.Please use premium quality oils to prolong engine life. And add some lubricant into the air cylinder before starting.
  • 【COMPLETE ENGINE KIT】- It is equipped with all the needed hardwares that can convert most regular bike into motorized bike.It can fit for most type 26"-28" bikes with V-frame, such as mountain bikes, road bikes,cruisers.
  • 【RUNS SILENTLY & SAFE】- Chrome-Plated exhaust muffler will give you low levels of noise and vibration,no worry about noise nuisance. Ignition type is CDI Ignition.It uses a safe capacitor discharge ignition method, so you can use it safely.
  • 【EASY TO INSTALL】- With detailed instruction contains every detail of the assembly steps.You just need to follow the installation manual to complete the installation.If you don't have experienc on installing the motor kit,please search "100cc bicycle engine kit" on youtube before installing.It will help you and solve many problems during installation. It takes about 2-3 hours to complete the installation.
No. 10
Ktaxon 100cc Bicycle Engine Kit, 2 Stroke Bike Engine Kit, Gas Bike Conversion Kit with Super Fuel-efficient, Powerful Engine for 26-28" Bikes (Silver)
  • 【POWERFUL ENGINE】The carefully selected premium components to make our gasoline engine can start quicker. The electronic igniter of this bike's gasoline engine allows you safer to use it while being super fuel-efficient.
  • 【UNMATACHED DURABILITY】Heavy duty metal engine body for better durability. Perfectly fits for most type 26" and 28" bikes with V-frame, such as mountain bikes, road bikes, commuter bikes and so on.
  • 【RUNS QUIIETLY】The engine kit only has a slight noise and slight vibration when you use it. You can use it in any outdoor environment without having to worry about noise nuisance.
  • 【STRONG PRACTICALITY】Equipped with all the needed hardware allow you easier to convert regular bicycles into electric bicycles. Of course, if you want to ride only with your feet, just need to stop your engine, and use the original equipment of your bike.
  • 【EASY TO INSTALL】The supplied product manual contains every detail of the assembly steps. Maybe you need some practical experience and some tools, but the installation is not too complicated. Our bicycle engine kit can help you have an electric bike first.
No. 11
WenDissy 100CC Bicycle Engine Kit, 2 Stroke Gas Motor Bike Set Air-Cooling Modified, Upgraded Full Bike Kit Gas Motorized Petrol Gas Set with Super Fuel Efficient Powerful Engine
  • Durable and Sturdy: 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.
  • Bicycles into Motorcycles: A motorized bike kit can convert a regular bicycle into a motorcycle, allowing you to enjoy faster riding speed and a more exciting life!
  • High Speed: The 100CC bicycle engine kit is powerful and durable, accelerating your bike to a maximum speed of 28mi/h and allowing you to experience the convenience of reaching your destination faster and easier.
  • Large Fuel Tank: A fuel tank with a capacity of up to 0.53gal supports longer journeys at once, and fuel consumption of around 0.66gal/100 km also reduces the hassle of frequent refueling.
  • High Loading Capacity: The bike motor kit can withstand a maximum weight of 440 lbs, and you can confidently install it on your bicycle and ride with it.
No. 12
100cc Bicycle Engine Kit, 4 Stroke Bike Motor Kit, Gas Motorized Motor Bike Modified Engine Motorized Bicycle,Low Fuel Consumption,3600rpm Speed,56mm Cylinder Diameter,For 26-28" Bikes
  • 【 HIGH QUALITY MATERIAL 】Bicycle engine kit adopts high quality aluminum, iron, plastic material, good hardness, good wear resistance, durable, durable.
  • 【 ENJOY THE RIDE】The bike engine kit can turn your bike into a motorized bike, up to a maximum. With a speed of 3600rpm, great efficiency and convenience, the 100cc bicycle engine kit allows you to fully enjoy your commute and short trips.
  • 【 HIGH PERFORMANCE】4-stroke engines are more stable, reliable and quieter than two-stroke engines. In addition, the 56mm bore increases the load carrying capacity and reduces the operating temperature, making it easier to start while providing continuous output over a certain speed range.
  • 【 LOW FUEL CONSUMPTION 】4 stroke bicycle engine kit Convert your bike to an electric bike, Max. Minimum stable no-load speed: 3600rpm, high efficiency, convenient and fast, so that you can fully enjoy the fun of commuting and short rides. Low fuel consumption, fuel tank capacity: 1.6L / 0.42gal, energy saving and economy.
  • 【 COMPLETE ENGINE PACKAGE 】The bicycle engine kit comes with everything you need to upgrade most traditional bikes to gasoline-powered motorcycles, including the engine, fuel tank, wrenches, bolts, chains, etc., so you don't have to buy other accessories, saving you a lot of money.
No. 13
FJNMKB 100cc Bicycle Engine Kit 2-Stroke Motorized Bicycle Fit Petrol Gas Motor Conversion Kit Air Cooling Motorized Upgraded Bicycle Engine Kit for Motorized Bike for 26" 28" V Frame Bicycle
  • 🏍️【100cc Bicycle Engine Kit】The 100CC bike engine kit includes all the parts and accessories needed to convert a regular bike into a gasoline-powered motorcycle.
  • 🏍️【Energy Efficient and Economical】Low fuel consumption, 150 miles per gallon, very energy efficient and economical.Engine requires 8oz 2 Stroke oil per gallon of gas during Break In Period.
  • 🏍️【Easier Starting】50mm bore single piece cylinder/head (increased weight capacity, lower operating temps, easier starting, sustained power output across varied rpm range).
  • 🏍️【Tunable High Performance Carburetor】Upgraded Tunable High Performance Carburetor. Features: Choke lever on the handlebars, Main jet. (Can be re-jetted), Pilot jet, Copper oil needle , Idle RPM Screw, Idle Air Screw that delivers more fuel with the choke on, instead of restricting air. Great for cold weather to start!
  • 🏍️【Safety Universal Engine Kit】4 bolts attach the engine to your bike frame and this kit comes are 8mm vs the standard 6mm. That means the mounts are twice as strong and twice as secure.The 100cc Bicycle Engine Kit is a general-purpose ordinary bicycle upgraded to an electric bicycle, you can enjoy a faster and safer riding experience. Suitable for most 26"/28" bicycles.
No. 14
Tipyoumall Upgraded Bicycle Engine Kit, 2 Stroke Motorized Bike Engine Motor Kit 100cc Super Fuel-efficient Fit Modified Full Set for 26"-28" Bikes
  • 【44 Tooth Bicycle Engine Kit】100cc motorized bicycle kit. Perfect for upgrading from a regular bike to an electric bike, you can enjoy a faster ride. Using this set of bicycle engine kits, you can transform the bicycle to your liking. Sproket :36 Tooth
  • 【Super Fuel-Efficientt】150 miles per gallon, very energy efficient and economical. Engine requires 8oz 2 Stroke oil per gallon of gas during Break In Period. 4 bolts attach the engine to your bike frame and this kit comes are 8mm vs the standard 6mm. That means the mounts are twice as strong and twice as secure. Max. Load capacity:180kg(396 lb),Top Speed: 48 km/h
  • 【Excellent Performance】50 mm bore single piece cylinder/head (increased weight capacity, lower operating temps, easier starting, sustained power output across varied rpm range)
  • 【Easy to Install】Motorized bike kit 100cc. Comes with all needed accessories for easy installation. Equipped with detailed instructions, this instruction contains every detail of the assembly steps. You just need to follow the installation manual to complete the installation easily
  • 【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. Great for cold weather starts
No. 15
GXYWADY Black 2 Stroke 100cc Bicycle Engine Motor Kit Replacement for 26 Bikes
  • 1. This product is a 100cc two-stroke bicycle motor engine conversion kit.
  • 2. Replacement for most 26 bikes.
  • 3. Max power: 1.9kw/5500r/min; Max speed: 48km/h.
  • 4. The cylinder is made of heavy duty metal material, strong and durable.
  • 5. The kit contains all the parts needed for the bike and can be easily installed by referring to the installation instructions.
No. 17
PEXMOR 80cc Bicycle Engine Bike Motor Kit, 2 Stroke Gas Motorized Bike Conversion Kit, Gasoline Petrol Bicycle Motor Refit Full Set for 26-28" Bikes with V-Frame,Super Fuel-efficient
  • 【POWERFUL ENGINE】- The 2-stroke 80CC heavy duty metal engine is powerful and durable.The mode of engine is single cylinder, air-cooling, two strokes.Max speed can reach up to 40km/h,which is the fastest but safe speed you can get.Max Power: 1.9kw/5800r/min
  • 【FUEL-EFFICIENT】- With 2L fuel tank.The fuel consumption per 100 kilometers is only 2.5-3L,which is super fuel-efficient.Fuel Type: 90# 92# 95#.Mixing Ratio Fuel Oil and Engine Oil:16:1.Please use premium quality oils to prolong engine life. And add some lubricant into the air cylinder before starting.
  • 【COMPLETE ENGINE KIT】- It is equipped with all the needed hardwares that can convert most regular bike into motorized bike.It can fit for most type 26"-28" bikes with V-frame, such as mountain bikes, road bikes,cruisers.
  • 【RUNS SILENTLY & SAFE】- Chrome-Plated exhaust muffler will give you low levels of noise and vibration,no worry about noise nuisance. Ignition type is CDI Ignition.It uses a safe capacitor discharge ignition method, so you can use it safely.
  • 【EASY TO INSTALL】- With detailed instruction contains every detail of the assembly steps.You just need to follow the installation manual to complete the installation.If you don't have experienc on installing the motor kit,please search "80cc bicycle engine kit" on youtube before installing.It will help you and solve many problems during installation. It takes about 2-3 hours to complete the installation.

How to choose a good bicycle engine kits

Does the idea of finding a fantastic bicycle engine kits make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in bicycle engine kits. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top bicycle engine kits products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top bicycle engine kits on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top bicycle engine kits brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top bicycle engine kits based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the bicycle engine kits were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good bicycle engine kits, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your bicycle engine kits.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting bicycle engine kits for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our bicycle engine kits. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what bicycle engine kits should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on bicycle engine kits.