What are some popular brands of bicycle motors?

Honda and Tanaka are some popular brands of bicycle motors. The GX series of motors from Honda and the Tanaka PureFire engines are used in several high-end kits, but a wide variety of other less expensive two-stroke 50 to 80cc engines are used in kits as well.

Consider several factors before choosing a specific brand or size of bicycle motorizing kit, including the amount of torque required, the weight of the rider, the terrain the bike is to be driven on and the type of controls desired. The size of the bicycle must be large enough to accommodate the desired motor along with its necessary mounting gear, gas tank and drive gears.