I would like to update my Shovel's front end with a newer dual disc setup. I have the info for 84 and up tube length, but I don't know the stock length tubes on my 80. I thought with the right tubes and lower legs I could put on a 17" wheel off a Street Glide.

 

Should be 20 1/2 in

 

Thanks. I will be able to collect the pieces and and won't have much down time.