DNYSYSJ 49CC 100CC Bicycle Engine Kit, 2-Stroke 4-Stroke Gas Petrol Motorized Bike Bicycle Engine Motor Modified Full Kit DIY Conversion Kit Chain Drive Bike Bicycle Scooter - 822545666

• 【100cc 4-Stroke Gasoline Engine】The high-quality aluminum, iron, and plastic material give it good hardness, wear resistance, and durability, allowing for long-term use. Ideal to upgrade the regular bike to a motorized bicycle. 【Enjoy Riding】This kit converts your bike into a motorized bicycle, with max. speed of 3600rpm for great efficiency and convenience, allowing you to fully enjoy the fun of riding on your commute and short journeys. 【High Performance】The 4-stroke engine is more stable, more reliable, and quieter than the 2-stroke engine. Also, the 56mm bore cylinder increases the bearing capacity, and reduces the working temperature, making it easier to start, while providing continuous output over a range of speeds. 【Widely Used】This 100cc 4-Stroke petrol gas engine kit suitable for most with Large Triangular Frame Space. Such as mountain bikes, road bikes, cruisers, choppers. 【Easy to Install】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.