3/4 to 1 inch rear axle conversion
Club Member
Joined: Oct 2011
Posts: 11,175
Likes: 2,483
From: Nor Cal
No argument from me; all your comments are valid but no need to get pissy. I agree that opting for the 1" bearings is the better option. The OP asked for ways to retain and repurpose the early wheel to fit his later model and I laid out two ways to do it. Right path? Wrong path? The OP has all the information he needs now to make an informed decision and that is what this forum is about.
But in regards to laying out the ways to "do it" while keeping the 3/4" bearings, your ways weren't really accurate (or complete).
BTW, I believe he asked how he could use that 3/4" wheel on his 1" bike, but NOT to also retain the 3/4" bearings in that wheel.
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Last edited by multihdrdr; May 24, 2025 at 12:36 PM.
Road Warrior
Joined: Dec 2006
Posts: 1,573
Likes: 138
From: StL, MO. USA
Totally agree that the Flex Hone is not the right tool for the job. Pretty sure it was what I used tho. Itll work in a situation where you dont have Machine Shop access or a Drill Press that will fit a wheel. Just dont expect it to be a 5-minute job. 😁
Club Member
Joined: Oct 2011
Posts: 11,175
Likes: 2,483
From: Nor Cal
It might be a 5-Day job 
I took a quick look (real quick) at the brushresearch.com site (maker of Flex-Hone) and one FAQ results said ...
"The Flex-Hone tool is a surface finishing tool, not a material removal tool. We are reducing the rough peaks of a surfaces microstructure and typically we only remove a small amount of material."
You would trying to remove ~1/8" of material (all the way around) x basically the width of the hub (because it's a cast-in "Tube" on that wheel) ... yikes
Ok, maybe more than 5 days
EDIT: You know if you wanted to go cheap and had some time, I would just grab a big Bastard Round file and "Go to Town"
... There's nothing precision about that hole. The "Hole" just provides clearance for the spacer sleeve
.
I took a quick look (real quick) at the brushresearch.com site (maker of Flex-Hone) and one FAQ results said ...
"The Flex-Hone tool is a surface finishing tool, not a material removal tool. We are reducing the rough peaks of a surfaces microstructure and typically we only remove a small amount of material."
You would trying to remove ~1/8" of material (all the way around) x basically the width of the hub (because it's a cast-in "Tube" on that wheel) ... yikes
Ok, maybe more than 5 days
EDIT: You know if you wanted to go cheap and had some time, I would just grab a big Bastard Round file and "Go to Town"
... There's nothing precision about that hole. The "Hole" just provides clearance for the spacer sleeve.
Last edited by multihdrdr; May 25, 2025 at 12:38 PM.
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Can someone tell me when HD moved from a 3/4 inch to a 1 inch rear axle? I've called three HD dealer
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Jun 6, 2006 10:41 PM
