Purchased a 2016 Road King. Can I put a 21" fat spoke without changing anything on her?

 

I think you'll need fender adapters that lift the fender a little

 

You "can" get away with it but it "can" be a tight fit. As rim size increases sidewall decreases. Ive seen 21s on touring models but like i said its a tight fit. With that said fender riders arent that expensive. If you have the tools you could make it pretty easy

 

Thanks guys. New owner, first bike. The information helps.