Changing rear swing arm??!

[badorderbob]

I’ve discussed this before but would like to throw this out?? I’m putting an 83 swing arm on but still using my 81 rim, by doing this what and or size can I get by with as far as width??? Thanks

 

[joedrum]

The 81 rim is narrower I think 2.75 and 82 and 83 rim is 3" ..the 83 swingarm will handle a wider tire but finding a wider tire for 81 rim might not be easy thing to find