Need help figuring out what to do
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Stage IV
Joined: Jul 2019
Posts: 4
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From: Middletown
Need help figuring out what to do
I have a 2018 fat boy, I would like to get new rims for front and back, I'm unsure of the rim sizes, I think I might have a idea, they are the stock ones, but it seems like I can't find the sizes for my bike. I read that the back rim is 18x8 but I'm only seeing 18x8.5, could someone help me out or point me in the right direction on where to find rims for 2018 fatboy. Please and thank you.
Seasoned HDF Member
Joined: Mar 2012
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From: Centennial, CO
Welcome to the Forum from Colorado!
Here's a place that used to be a sponsor in here.
https://wanaryd.com/harley-wheels-and-wheel-hardware/
Here's a place that used to be a sponsor in here.
https://wanaryd.com/harley-wheels-and-wheel-hardware/
Road Captain
Joined: Nov 2018
Posts: 583
Likes: 382
From: Allegan, Mi
The sizes in this chart list your stock wheels as 18x4.25 front, 18x8 rear.
You can go 21x3.5 in the front and 18x8.5 in the rear with no issues.
Link here; https://www.titancustoms.com/hadawhsich.html
You can go 21x3.5 in the front and 18x8.5 in the rear with no issues.
Link here; https://www.titancustoms.com/hadawhsich.html
Thread Starter
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Stage IV
Joined: Jul 2019
Posts: 4
Likes: 0
From: Middletown
The sizes in this chart list your stock wheels as 18x4.25 front, 18x8 rear.
You can go 21x3.5 in the front and 18x8.5 in the rear with no issues.
Link here; https://www.titancustoms.com/hadawhsich.html
You can go 21x3.5 in the front and 18x8.5 in the rear with no issues.
Link here; https://www.titancustoms.com/hadawhsich.html
Thank you, now would I have to get different size tires or can I keep the ones that are on there now?
Road Captain
Joined: Nov 2018
Posts: 583
Likes: 382
From: Allegan, Mi
If they're wider (rear) or bigger diameter (front) you will need new tires. That way everything fits and rides the same.
The stock rear tire may still fit an 8.5" rim but the chart suggests a 250mm tire over the stock 240mm.
If you need to replace one tire (as in a larger diameter front) you may as well replace both tires.
Hope that helps.
Last edited by 1Qcktrufflesnuffler; Jul 3, 2019 at 02:50 AM.
Thread Starter
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Stage IV
Joined: Jul 2019
Posts: 4
Likes: 0
From: Middletown
If you get new wheels that are the same size as your stock wheels you can transfer the tires.
If they're wider (rear) or bigger diameter (front) you will need new tires. That way everything fits and rides the same.
The stock rear tire may still fit an 8.5" rim but the chart suggests a 250mm tire over the stock 240mm.
If you need to replace one tire (as in a larger diameter front) you may as well replace both tires.
Hope that helps.
If they're wider (rear) or bigger diameter (front) you will need new tires. That way everything fits and rides the same.
The stock rear tire may still fit an 8.5" rim but the chart suggests a 250mm tire over the stock 240mm.
If you need to replace one tire (as in a larger diameter front) you may as well replace both tires.
Hope that helps.
So if I switch my wheel to 21x3.5 and a different tire, would I have to get spacers? And if so where would you get the spacers?
Road Captain
Joined: Nov 2018
Posts: 583
Likes: 382
From: Allegan, Mi
When you order the wheels you specify your year and model of bike and they select the 21x3.5 wheel with the same hub size as your OEM wheel.
So you would use same spacers.
Whomever you order the wheels through would be able to alleviate any worries you may have, or answer any questions about fitment.
So you would use same spacers.
Whomever you order the wheels through would be able to alleviate any worries you may have, or answer any questions about fitment.
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