I had chatgpt estimate the downtube for me and it came up with 40mmnear the head tube, and 60mm near the bb and it worked out pretty well for me (see all the frame pics above, attaching the downtube shot here).

Don't really have measurements for anything else, but they did a pretty good job with the graphics I provided (vector graphic pdf files are their preference).

Of course anyone with a frame, a piece of string and a little time could probably do better

Hope that helps!

in the last few weeks the same question has been asked several times, have look and reply to the previous threads if unclear.

Got a link for those threads?

Has anyone perchaince ever seen a clone of the Avid Rollamajig?

Are you interested in an original Avid one? Can't post pics but pm me....

https://www.dropbox.com/scl/fi/6usk0fk9cioi6iqwl8ym4/20240530_085413.jpg?rlkey=swm2nbbublcghlggsfhsx2rik&dl=0

I think Lameda is really good!

ok thank you

i don't wanna change brake position every time i change the wheelset. with a replica i should not really have the problem if they build it like the original 240s? or should i just shim the brakerotors?