Some of you know that I moved the Fat Bob wheels from the Sportster to the Slim-S. Why would the setup that fits a Sportster would not fit on the Slim is beyond me, but that whatever...

Back when I did the swap, I made the rear fit by placing some spacers in the rear fender brackets. This expanded the rear fender enough to avoid the tire from rubbing.





I have never been comfortable with this solution I rather install a narrower tire and eliminate those spacers. This will also help when installing and removing the rear rack...

The concern that I have is installing a narrower tire on a 5" wheel... any adverse issues from doing so??

The curren tire on the back right now is a Shinko SR777 Black wall - Size: 170/70-16 75H - this measures 6.61"

I would like to take it down to a Shinko SR777 Black wall - Size: 150/80-16 77H - this one measures 5.91"

Stock tire is a MU85B1677H - which is something like a 140 and measures 5.59".

So the question is.... any issues using the Shinko SR777 Black wall - Size: 150/80-16 77H - this one measures 5.91" on a 16x5 rim?? A tire that is spec for a 3.5" rim....

I do not want to go back to the spoke stock wheels because of this... but I want the peace of mind of not having that mod in the rear fender for the current setup...

 

Humm... title of the thread should have been

Can I fit a 150 rear tire on a 5" rim?

 

according to this it's ok:



I have a switchback front wheel I may put on my slim if I can find a deal on a matching rear.

 

You may be a little pressed to find a 150 that is less than a 80 aspect ratio (I don't think there are many to choose from). The 150/80-16 Rear is the common size and a 5" rim is too wide...even by the chart above


.

 

Not sure what would be more of an issue... keep it as is or try to install that 150 to see how it behaves... still thinking about how to proceed.

 

I will give it a try... ordered a Shinko 777 HD Rear Tire - 150/80-16/Blackwall

If this does not work, I will just go back to the original rims/tires.

 

do you need to go down to a 150 or could a 160 work?

 

Could not find a Shinko SR777 Black wall rear tire in that size.

 

if you give up on that wheel I may be interested in it...it's the black rim that matches the slim wheels?

 

I just ordered a 18x4.25 rear rim with a 150/70 tire keep you posted on how it works out