mark v:
"Cro mo", probably butted 4130
Braze-ons for rear brake
1 1/8" threadless fork

mark v pro:
Reynolds 631
No braze-ons for rear brake, hole for front brake
1 1/8" threadless

Angus
Reynolds 631
No braze ons, hole for front brake
1" threaded
Orange paint.


The geometry is the same, except the mark v pro has a 30mm rake fork (although they don't say what the other ones have).