2008 rear tire

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Mar 14, 2021 | 07:17 PM

CoMatt

Thread Starter

Intermediate

Joined: Mar 2019

Posts: 38

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From: South Carolina

2008 rear tire

Hey guys, looking at info on finding the widest rear tire that’ll fit a 2008 Ultra classic. All the searches I did just found info on what would fit a stock rear wheel but I’m planning on upgrading wheels, so what’s the biggest wheel/tire I can go without modification? Thanks for the help.

Mar 16, 2021 | 05:54 AM

pingman68

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Joined: Sep 2007

Posts: 963

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From: Displaced hillbilly

I could be wrong, but I believe 150 is the widest that frame will allow....

Mar 16, 2021 | 07:23 AM

eighteight

Seasoned HDF Member

Joined: Oct 2019

Posts: 10,809

Likes: 7,446

From: OH

150 will fit , tire brands vary, "some ' will require an 1/8th spacer on in board side of rear sprocket to create belt clearance
This was my experience with 150 70 18 Metzler , on `99 RK
It is close to the fender

Can`t hurt to get on the floor and make some comparative measurements as you have a later model year

Last edited by eighteight; Mar 16, 2021 at 07:30 AM.

Mar 16, 2021 | 01:59 PM

caulk04

Road Master

Joined: Jul 2016

Posts: 870

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From: Transfer, PA

Not wide (cool) enough to deal with the headaches of cramming a too-wide tire in there.

Mar 16, 2021 | 03:48 PM

EVOrider

Stellar HDF Member

Joined: Feb 2007

Posts: 2,558

Likes: 280

From: Russellville, Arkansas

Quote:

Originally Posted by eighteight

Up to 2001.....they came with the 130. In 2002, narrower belt and improved swing arm allowed for the 140. Stayed that way until the 2010 models came out. Only exception was the 2007-2008 Se Roadking....came with a wider fender and wider swing arm allowing a 160.

Ive seen 140’s on pre-2001
ive seen 160’s on post 2002.....tight squeeze

Mar 17, 2021 | 07:56 AM

twistedcherokee

Road Warrior

Joined: Oct 2006

Posts: 1,350

Likes: 46

I am running a 180 65 16 on my 1999Ultra. But I have modified the swing arm & rear fender. Before that I was running the 150 80 16 with a 1" wide belt. Which you already have. You may have to center the rear tire with different shims, but it does track better when that is done in my opinion.

Toby