12V Straight DC 12v Motor motors with no gearing.
These are basic DC motors, just as the title states. These are a directly DC motor with no gearbox whatsoever.
We offer these basic motors in assorted power ranges at 12VDC motors which are compatible with our range of DC Speed controllers.
Without gearing, these universal motors are created for 
scooters or e-bikes using belts and chains (with varying size sprockets) to create high torque or moderate torque with higher speeds!
While primarily created for scooter or go-kart use, they are a favorite range for hobbyists and inventors.
While these are low cost motors, there is nothing cheap about the quality. They are simply motors that are created in such large quantities that they can be created with a low price point.
The are produced in bulk, so while its expensive to get adjustments made (quantity must be purchased) the stock motor is low cost because of its availability and widespread use.