12V Straight DC Motors with no gearing.
These are basic DC motors, just 
as the title says. These are a straight DC motor with no gearbox whatsoever.
We offer these basic motors in assorted power ranges at 12VDC motors which are appropriate for our range of DC Speed controllers.
With no gearing, these universal motors are made for scooters or e-bikes using belts and chains (with varying size sprockets) to create high torque or medium torque with higher speeds!
While primarily created for scooter or go-kart use, these are a favorite range for hobbyists and inventors.
While these are low cost motors, there’s nothing cheap about the quality. They are 12v Motor simply just motors that are created in such large quantities that they can be created with a low price point.
The are manufactured in mass, so while its expensive to get adjustments made (quantity should be purchased) the stock motor is low cost because of its availability and widespread use.