I am in the process of changing my "pizza cutter" front wheel on my nightrain to the 120/70-21.
The bad news is the kids decided to "clean" the garage and now I am not sure which wheel spacer goes on which side.

Can someone with a Custom or nightrain please post which side has the longer spacer? (Front)

I sized things up in relation to the caliper and rotor and think i have it straight but the wider tire really accents the wheel offset, so it looks a little more noticable with the tire closer to the left fork than center. So far the breaks line up fine with OEM spacers (guess i got lucky).

 

The longer spacer is on the left (rotor) side on my Custom.
Post some pics of your new front end when you're finished. I'd like to see that.

 

Thanks, The longer one being on the left is what i had that made the rotor line up good. Have a new problem now.
Both hubs measure 6.5" (through the axle hole), strange thing is the OEM wheel is almost perfectly centered between the forks, the new rim is 1/4" off to the rotor side. This means to center the wheel I will need to add an additional 1/8" longer spacer to the rotor side and also add the same spacing to the caliper, basically add a few washers between the fork and caliper.
Looking back I think I should have re-laced my OEM hub.

 

is the new wheel built for your year model? if someone sold you a 84-99 wheel, like someone did to me, it will not be centered.

 

They claim it is for my year, 2000+, but you know how that goes.

 

unfortunately i do. does it have sealed bearings or temkin bearings in the hub?

 

OK, I am going to show my vast knowledge of the HD wheel with this question... What is the difference in bearings and is there a way to tell?
I have been playing around half the day cutting PVC spacers.

Also, does anyone know if the fender is perfectly centered, it would be a lot easier to use the fender has a center reference if I knew for sure it is built centered.

 

Sealed bearings are sealed. Timkin's are not sealed and look much different. It's easy to tel with two different wheels in front of you.

 

The bearings look exactly the same as the OEM wheel.
After playing around all day on spacing I found some interesting stuff.
The 21x2.15 OEM wheel with orginial spacers sits 1/4" off to the right measureing from wheel lip to fork lower. (Fender is perfectly centered)
The new 21x3 sits 1/4" to the left with OEM spacers and the breaks line up.
I ended up using pvc temp spacers adding 1/4" to the long side and taking 1/4" from the short side. This makes the new wheel center with the OEM fender but still gives the offset like the orginial wheel.
Now I need to machine some spacers and add 1/4" spacers to the caliper.
For those of you that installed the wider wheel and had no problems, man I wish I was that lucky.

 

FYI if the front wheel is off 1/4 inch, Absolutely nothing will happen. The Fatboys and maybe other models as well hcome with a front wheel offset from the factory.