12V Directly DC Motors without gearing.
These are simple DC motors, simply as the title claims. These are a straight DC motor without gearbox whatsoever.
We offer these basic motors in assorted power ranges at 12VDC motors which are compatible with our range of DC Speed controllers.
With no gearing, these universal motors are 
created 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 designed for scooter or go-kart use, these are a 12v Motor favorite 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 quantities they can be produced with a minimal price point.
The are produced in mass, so while its expensive to get changes made (quantity should be purchased) the share motor is low cost because of its availability and widespread use.