The below trigger wheel generator is provided and maintained by Bad Apple Machine & Fab for the benefit of the Speeduino community.
https://www.badappleproducts.com/trigger-wheel
Major Diameter
Arbor Hole Diamter
Tooth Depth
Tooth Width
Equal Gap/Width
Tooth Offset
24-1
36-1
60-2
Custom
1/8 (0.125") or 3.17mm
3/16 (0.1875" ) or 4.76mm
1/4 (0.250") or 6.35mm
Number of Bolt Holes
Bolt Hole Diameter
Bolt Hole Circle