Bearing change from 3/4 " to 1 inch

Reply Subscribe

Thread Tools

Search this Thread

May 5, 2019 | 08:54 AM

ballbreaker69

Thread Starter

Tourer

Joined: Mar 2010

Posts: 491

Likes: 21

From: CANADA

Bearing change from 3/4 " to 1 inch

I own a 2007 sportster custom with the rear wheel that takes a 1 inch bearing and axle. I found a really cheap rear wheel from a 2001 sportster however it has a 3/4 inch bearing and axle. Is it possible to just change the bearings only without any other work. They are both cast wheels. Was wondering if Harley would carry a bearing that would do the job. Thanks in advance as I couldn't find any threads on it.

May 5, 2019 | 10:49 AM

grbrown

Club Member

Joined: Jun 2007

Posts: 45,429

Likes: 2,897

From: Bedford UK

Wheels from that year range will take 3/4", 1" and also 25mm bearings. I have a Softail rear wheel on my Glide which I changed from 3/4" to 1", also a later SG front wheel which I have changed from 25mm to 1". In both cases I used a set of Harley bearings which come with the correct internal spacer etc. Check the H-D website and the Shop tab, where you should find details of the bearing kits you need.

Last edited by grbrown; May 5, 2019 at 10:52 AM.

May 5, 2019 | 05:24 PM

ballbreaker69

Thread Starter

Tourer

Joined: Mar 2010

Posts: 491

Likes: 21

From: CANADA

Thanks GRBROWN for the information. I guess can work for most wheels. Gives me some more options.

Feb 8, 2025 | 03:58 PM

Mcasper994

2nd Gear

Joined: Feb 2025

Posts: 6

Likes: 0

Quote:

Originally Posted by ballbreaker69

if i want a front wheel with a 3/4 axle and my bike takes a 1 inch do i have to bore the hub I'm trying to put a cvo deuce wheel on my 2007 deuce

Feb 9, 2025 | 11:37 AM

multihdrdr

Club Member

Joined: Oct 2011

Posts: 11,175

Likes: 2,483

From: Nor Cal

Quote:

Originally Posted by Mcasper994

Can anyone tell me how I can make it fit ? My bike is a 1 inch axle and them wheel is 3/4 do i need to bore the hub ? I'm lost

Quote:

Originally Posted by Mcasper994

How can I make this fit on a 2007 deuce ? That wheel is 3/4 axle and mine is a 1 inch. Someone said I would have to bore the center of the hub to fit a bigger sleeve and someone said u don't just swap the bearing to a 1 inch and my axle will fit

Quote:

Originally Posted by Mcasper994

if i want a front wheel with a 3/4 axle and my bike takes a 1 inch do i have to bore the hub I'm trying to put a cvo deuce wheel on my 2007 deuce

Bore the Hub on your 3/4" wheel

.

Feb 10, 2025 | 08:34 AM

twincam10353

Road Master

Joined: Mar 2020

Posts: 1,077

Likes: 267

From: New England

All of the sealed ball bearings that Harley uses in their wheels (3/4", 1" and ~~25mm~~) are all the exact same OD and height/depth. The only variable between these bearings is the ID.

To modify a wheel that was originally 3/4" to now accept 1" you will obviously need to remove the 3/4" bearings and replace them with 1" bearings.

Additionally, you will more than likely need to bore the hub of the wheel out a bit larger to accept the 1" spacer that sits in between the (2) wheel bearings.

In the opposite scenario (modifying a wheel that was originally 1" to now accept 3/4") after you replace the bearings with the appropriate size I'd recommend using a 3/4" spacer INSIDE of a 1" spacer (used in tandem) in order to choke down on the oversized 1" hub that you no longer need.

Last edited by twincam10353; Feb 10, 2025 at 09:54 AM.

Feb 10, 2025 | 08:57 AM

multihdrdr

Club Member

Joined: Oct 2011

Posts: 11,175

Likes: 2,483

From: Nor Cal

Quote:

Originally Posted by twincam10353

All of the sealed ball bearings that Harley uses in their wheels (3/4", 1" and 25mm) are all the exact same OD and height/depth. The only variable between these bearings is the ID.
...

Not the same width ...
Factory Bearings:
21mm wide for the 3/4" & 1"
15mm & 18mm wide for the 25mm STD & ABS