12V Straight DC Motors without gearing.
These are basic DC motors, just as the title says. These are a straight DC motor without gearbox whatsoever.
We offer these simple motors in assorted power ranges at 12VDC motors which 
are compatible with our selection of DC Speed controllers.
With no gearing, these universal motors are designed 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 priced motors, there is nothing cheap about the quality. They are simply motors that are made in such large quantities that they can be produced with a minimal price point.
The are produced in mass, so while its expensive to get adjustments made (quantity must be purchased) the stock motor is low cost because of its availability and 12v Motor widespread use.