Here are some comparison pics. I think it looks really good. Not too worried about it being to short.

 

Ignore my dirty floor lol

 

Looking good bro, you cant beat a 21...dont matter what you wrap it with.

I like the spokes...bike wheels are that real vicla ****

 

Thanks man I love it, can't wait till the fenders get stretched and painted.

 

Looking good.
Stretched rear fender will be on my 'to do' list next winter...( summer here now)

 

is that a stock 17" wheel next to the 21? Im getting a 21x3.5 for my fatboy and was thinking the 21" would "look" as wide on the bike..

 

If you had the right size tire on it would look pretty darn close but seeing as that is a 90/21 tire on the wrong size rim it will not look as wide. Hope you have a tube in that stretched rim. Not to scare anyone but I have seen that setup cause a few dented rims in the past. Proper air pressure 42 or so is paramount when stretching a tire like that. Had that setup on my bike without issue for a few years.

 

what size tire would I need to use to keep the width close to the stock size on my setup?

 

Don't worry I'm not scared, I think it looks way better then the larger tire. And I'm running tubeless.

 

I'm not trying to scare anyone, just sharing info. The proper size tire for that size wheel is 120/70/21.