Re: 21'' front on fatboy Hi Reg
I have done alota wheel swaps but Not that specific swap so I did a wee research..
In my books it appears that both models & years wheels accept 3/4" bearings meaning your 05 Fatboy axel will slip-in the Deuce wheel/bearings with no prob..
However, it appears the axels are a diff P.N. and might have a diff profile meaning, since I suppose you plan on using the FB axel, you may have to provide your own spacers, buy or make, but hey, maybe not ..
The important part of that is just making sure the Wheel/Tire assemb. is dead centered tween the lower legs..
Since both are W-G's I bet a dime to a doughnut the brake rotor/s slip right into the caliper/s after centering correct..
These kinda swaps sometimes require a wee innovation but are among the simplest & easiest to complete..
Given only the info I have seen, I personally would Not hesitate to tackle the job if that's your intent..
Have a ball
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