This is my take in designing turn lights for a Yamaha TTR250.
They need to be printed in two parts (body and cover), and mirrored for L/R indicators.
This design has a 12mm hole for bulb fitting.
"Turn Lights TTR250 v1" STL File is here for general overview
Use the "Body" and "Cover" files for printing
The author marked this model as their own original creation.