12V Directly DC Motors with no gearing.
These are simple DC motors, simply as the title states. These are a straight DC motor without gearbox whatsoever.
We offer these basic motors in assorted power ranges at 12VDC motors which are appropriate for our selection of DC Speed controllers.
Without gearing, 
these universal motors are made for scooters or e-bikes using belts and chains (with varying size sprockets) to create high 12v Motor torque or medium torque with higher speeds!
While primarily designed for scooter or go-kart use, these are a popular range for hobbyists and inventors.
While these are low cost motors, there’s nothing cheap about the product quality. They are simply just motors that are created in such large amounts that they can be produced with a low price point.
The are produced in mass, so while its expensive to get adjustments made (quantity should be purchased) the share motor is low priced because of its availability and widespread use.