12V Directly DC 12v Motor motors with no gearing.
These are simple DC motors, just as the title claims. These are a straight DC motor without gearbox whatsoever.
We offer these simple motors in assorted power ranges at 12VDC motors which are appropriate for our range 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 torque or moderate torque with higher speeds!
While primarily made for scooter or go-kart use, they are a popular range for hobbyists and inventors.
While these are low cost motors, there’s nothing cheap about the quality. They are simply motors that are made in such large amounts they can be produced with a low price point.
The are manufactured in mass, 
so while its expensive to get adjustments made (quantity must be purchased) the stock motor is low cost due to its availability and widespread use.