We offer the largest catalog of motors for bicycles in the world. We have 4 main categories of bicycle motor kits: 48cc 2-Stroke, 80cc 2-stroke Kits, and 4 Stroke kits. Whether you’re looking for a budget friend, cheap bicycle engine kit or the best bicycle gas motor money can buy, we’re sure to have the one for you. Below we’ll go over a brief explanation of each of the different types of engine kits.
48cc 2-Stroke Motorized Bicycle Kits:
The 48cc bike motor kits are designed specifically for the legally conscious rider in mind. Many states in the US have a legal limit of 50cc to be classified as a motorized bicycle. Keeping within the legal limit of your state means that you don’t need a license, registration or insurance for your motorized bicycle. For that reason, the 48cc engines are especially popular for those looking to stay within the legal limits of the law.
Now you may be thinking that a 48cc engine will be 25% slower than that of a comparably equipped 66cc engine. That’s not always the case- 48cc motors tend to run smoother and can rev higher than its 66cc counterpart. This translates to lower torque on the bottom end of the engine power curve but comparable top speed on the top end.
80cc/66cc 2-Stroke Motorized Bicycle Kits:
The 80cc 2 Stroke motorized bike kit is by far the best selling engine kit on the market.
Advantages:
- The most budget-friendly motorized bike kit available with prices starting at just $139.
- Easily repairable- almost every part of this engine kit can be easily replaced.
- The most customizable- we carry hundreds of after-market parts to make your engine kit the fast!
- Highest torque to displacement ratio of any other motorized bicycle kit.
- Easy to troubleshoot- due to the simplistic nature of this bike engine kit type. If the engine will not start or does not run properly, the issue can be easily isolated to either the carburetor, electrical components (magento, CDI or spark plug) or engine compression.
Disadvantages:
- Requires regular maintenance- 2 stroke engines vibrate, a lot. As a result, it is recommended that all bolts and hardware are inspected prior to every ride.
- Fine-tuning of the carburetor air/fuel ratio may be required. Due to differences in elevation, it is recommended to adjust the carburetor’s air/fuel ratio to accommodate the differences in atmospheric air conditions in your specific area. See here for our carburetor adjustment guide.
- Requires mixing of oil and fuel.
- Most prone to engine flooding- if the carburetor is not adjusted properly, or the fuel is not turned off during storage, the engine can flood which will prevent the motorized bicycle from starting.
BikeBerry offers 2 brands of the 66/80cc 2-Stroke Motorized Bicycle Kits:
Mega Motors: The Mega Motors line of bicycle motor kits is our entry-level, budget-friendly line of motorized bike kits. If you’re looking for a cheap bicycle engine kit, this is the model for you. But don’t let the price fool you, this line of motors are fully capable, reliable work-horses that are leaps and bounds better than what the competition offers. The Mega Motor engines feature all the standard upgrades you would expect from a top tier engine. This includes:
- High-grade needle bearings on both ends of the crank.
- Balanced crank from factory
- High grade ball-bearing used on the main bearing.
- 415H heavy duty chain (compared to 410 standard bike chain with other brands)
- Industry’s only true 6-month warranty.
BBR Tuning: The BBR Tuning line of motorized bicycle kits are fully upgraded and considered to be the best quality engines on the market. On top of the upgrades you see with the Mega Motors line, 2 Stroke BBR Tuning line feature:
- A full upgrade of all engine hardware- all of the hardware is upgraded to Grade 8, ultra-strong steel.
- All bolts have been upgraded to use Allen key heads to ensure- these bolts allow the bolt to be torqued down properly without the risk of striping. -
- Intake and exhaust ports have 40mm intake stud spacing for increased airflow into the engine’s combustion chamber. By comparison, the Mega Motors line of engines, as well as most of our competitors use 30mm intake stud spacing.
- Motor mount studs are upgraded to 8mm stud diameter. By comparison, the Mega Motors line and most of our competitors use 6mm engine mount studs. Due to the high-vibration nature of a 2-stroke engine, the 6mm stud configuration is prone