What vehicles use a th125 three speed transmission?

The TH125 three-speed transmission wasn't a widely used, standardized transmission like some others. Therefore, pinning down *exactly* which vehicles used it is difficult without more context. This transmission designation is likely specific to a particular manufacturer or a very niche application.

To find out which vehicles used a TH125 three-speed transmission, you'd need to provide more information, such as:

* The manufacturer: Knowing the manufacturer (e.g., Honda, Yamaha, etc.) would significantly narrow down the possibilities.

* The year of manufacture: Older vehicles are less likely to have readily available documentation online.

* The type of vehicle: Was it a motorcycle, scooter, small engine application (lawnmower, etc.)?

With more details, a more precise answer might be possible.