(This is as opposed to 4-cycle engines, which will have two separate ports, one for motor oil, and one for gasoline.) The port will have a cap that will tell you the recommended gas-to-oil ratio. They will have a single fill port for pouring in oil and gasoline. The mixing ratio of fuel and engine oil: Most of the bicycle engine kits that we reviewed were 2-cycle engines, as is common in other small engine devices, such as lawn mowers or snow blowers. For example, the Iglobalbuy Petrol Gas Motor Bicycle Engine fits most 26” wheel bike.įuel efficiency: It is not uncommon to find bicycle engines that can achieve mileage of 100 km on 1.5 liters of fuel (that translates to 157 miles per gallon)! Also, there are differences in tire width which must be taken into account. You’ll have to match the kit to your bike’s wheel diameter-28” wheels won’t fit snugly onto a 26” bike, and if you try to put 26” wheels on a 28” bike, the brake assembly won’t reach the tire. Tire diameter: Many bicycle engine kits will be for either 26” or 28” diameter wheels. The larger capacity means that you won’t have to fill up your tank as often. The most popular bike engines have either a 50 cc or 80 cc capacity. Speedometer: Some kits throw in a complementary speedometer as well, to allow you to better see and control your speed.įuel tank capacity: You’ll see the fuel tank capacity of your kit’s motor given in cc’s: cubic centimeters. Some customers achieved as much as 57 mph (even though that exceeds the speed limit)!
That increases the combustion engine’s power. It provides the engine with more oxygen, meaning more combustion. They also got a larger exhaust pipe and installed a nitrous oxide injection kit. They also installed a low-compression head, which keeps the motor cool. The extra torque of the sprocket is what helps the rear wheel move faster. For example, with the Roadstar 50 cc Bicycle Engine Kit, a customer said that he was compelled to buy better-quality mounting hardware, to secure the engine more tightly in place.Īchieve higher speeds: Some customers were able to achieve even higher speeds with their bicycles, by changing to a center-hub mounted sprocket around the back wheel. Select the right brand of bicycle engine kit, andĪvailability of replacement parts: Even with the better motor kits, customers complained of the quality of the mounting hardware. Read reviews of different bicycle engine kits, and what customers are saying, See useful tips about that type of bicycle engine kit, It'll help you:Ĭhoose the right type of bicycle engine kit, We’ve composed this buyer’s guide to help you make the right decision when selecting a bicycle engine kit. But, there are tips on matching the kit to your present bike model, as well as tricks for lubricating the parts properly and finding the right fuel-to-oil ratio. The kits are usually intended to be universally suitable for all bikes. There are kits for beach cruiser bikes, road bikes, and mountain bikes. A bike engine kit can be surprisingly fuel-efficient, and get you around town at speeds as high as 40 mph.īut, there are some tricks and tips that you should be aware of, to get the most out of your kit.
It can help you convert a regular bicycle into a motorized bike, or “moped” (you’ll still have to do some pedaling, especially when going uphill). If you enjoy bike riding and have a knack for Do-It-Yourself and tinkering, you might want to look into a bicycle engine kit.
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