Stumper, the 82 and later 125 and 175 should be the same, but if you have both frames, how hard is it to go look and compare? I could see you asking the question if you didn't have both frames. The main thing I'm not sure of is if there is the mount for the 175 fuel pump on the 125 frame. But again, you have both frames, you should be telling us.
Nicholson 500x (Project)
Nicholson 185s
Nicholson 110 (That takes an atc70 tank)
Ascott 500 head/350x (Project)
Homebuilt Racer Chromoly Suspension 110 (Ragin Runt)
PK Racing Suspension 70
A+ Inc Suspension 70
AWS Aluminum 90 frame
Hi Performance ATC Suspension frame rd350
Hi Performance ATC Suspension frame 90