thor 1912-1915 frame question.....

[E Castells]

hello, i would like to know if somebody has a 1912-1915 Thor frame and can help me with some details that i need for the restauration of my bike. i need to know the correct size for the eccentric system, you can see what i am looking for in the attached file.
thank you in advance for your help
Enrique Castells from Spain

[motosmith]

For a twin or a single?

[silentgreyfello]

The frames for twin and single are exactly the same except for the motor mounts. I will get the dimensions off of my bike.

[E Castells]

you are right, Jim. there are not difference between them.