well I think it would be better just to buy 70 sprockets...you either have to weld a tab or do what I did which is to drill a hole in the swinger and put a 5/16th allen head bolt thru it with the head toward the brake panel...you will have to grind the allens head flat on two sides so it will fit in the brake panels slot....on the forum here you can search for 70 swingarm on a 50 topic and they have pics posted...but really I would just buy 70 sprockets...heck sell your old 50 sprockets on here
Yes i know but i have alot of Renthals maybe every one made for a 50 and a few rear hubs thought build one for the 70 so i dont have even more sprokets you know ?? So when i take both to a race if i have a problem i can change wheels ..........
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