I am am looking for m 25 bearings for 74 250 motor rebuild . If you have a set you can part with call me. Also have a complete motor on original bore. A stock pipe in good to fair condition , air box, skid plate and rear break hub for same year and size. $500.00 for everything. Dawgs Vintage cycles 412 979- 4490 Pgh.P.A. Sorry posted in the wrong area Thanks
Glen Sontag has some listed in the f/s section, good luck..
Tom Brosius
I get mine from the UK, google them if you can't find them, they are out there
Just use regular bearings, you dont need three piece bearings.
Brian
Simplybearings.uk.com