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Fuji Royale '81 12-speed bottom bracket spindle replacement

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Fuji Royale '81 12-speed bottom bracket spindle replacement

Old 02-21-16, 03:02 PM
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royale81
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Fuji Royale '81 12-speed bottom bracket spindle replacement

Hi,
I own an 81 Fuji Royale 12-speed, and I'm in the process of servicing my bottom bracket. I took everything apart (except left the fixed cup in place) - the bearings looked really good, and so did both cup races, so I've cleaned and greased and reused these. The spindle was a little pitted, but I decided to re-use this also.
The spindle is a 120mm asymmetric "nut"-type - unfortunately the only markings on the entire bracket are the letters 2S on the spindle - this doesn't match anything I've seen. The measurements match closest to the Sugino 3N 32-52-36 120mm.
My issue is that some threads on the drive side boss on the spindle are stripped - just a couple of threads in the central part, but enough that I can't drive the crank up the taper.
When I'm not driving the crank I can get the nut past those threads, and then secure it tight to the end of the taper.
[The whole repair job started with a loose drive crank, but at one point (before this servicing) I was able to drive the crank on tight without any play - I just can't do it now]

So, I am thinking of replacing the spindle, but cannot find a Sugino replacement.
I have ordered a SunLite and am waiting for it to arrive, but I've never heard of Sunlite and can't seem to find decent reviews.

I am wondering if anyone has suggestions/recommendations for a replacement spindle, or also any experience with the SunLite spindles - quality, etc ...

Thanks!
Mehelli
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Old 02-21-16, 03:13 PM
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habilis
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Originally Posted by royale81 View Post
Hi,
I own an 81 Fuji Royale 12-speed, and I'm in the process of servicing my bottom bracket. I took everything apart (except left the fixed cup in place) - the bearings looked really good, and so did both cup races, so I've cleaned and greased and reused these. The spindle was a little pitted, but I decided to re-use this also.
The spindle is a 120mm asymmetric "nut"-type - unfortunately the only markings on the entire bracket are the letters 2S on the spindle - this doesn't match anything I've seen. The measurements match closest to the Sugino 3N 32-52-36 120mm.
My issue is that some threads on the drive side boss on the spindle are stripped - just a couple of threads in the central part, but enough that I can't drive the crank up the taper.
When I'm not driving the crank I can get the nut past those threads, and then secure it tight to the end of the taper.
[The whole repair job started with a loose drive crank, but at one point (before this servicing) I was able to drive the crank on tight without any play - I just can't do it now]

So, I am thinking of replacing the spindle, but cannot find a Sugino replacement.
I have ordered a SunLite and am waiting for it to arrive, but I've never heard of Sunlite and can't seem to find decent reviews.

I am wondering if anyone has suggestions/recommendations for a replacement spindle, or also any experience with the SunLite spindles - quality, etc ...

Thanks!
Mehelli
I've bought BB spindles from Niagara, Bikewagon, etc. The axles are similarly priced regardless of brand, and they are all hardened steel. I've had good results with all that I've bought. Just measure your old one carefully and make sure the dimensions match those listed for the replacement.

If stripped thread were the only problem with the old one, a good bike shop might have been able to clean up the threads with a die.
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Old 02-21-16, 03:17 PM
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https://www.loosescrews.com/product/...dle-bolt-type/
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Old 02-21-16, 03:32 PM
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There's one consideration I didn't think of till now: The spindle you ordered will be JIS taper, but the thickness of the taper may be different than your older crank requires. I encountered that problem when mounting a new crank on an old (80's?) spindle. The crank wouldn't slide far enough onto the taper. For that reason, you may be better off with Bill's product, which is specifically made for Sugino cranks. Since you've already ordered the Sunlite, you may be able to check the fit and return if it's wrong.

The other option: any new JIS crank should fit a new JIS spindle like the Sunlite.
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Old 02-21-16, 03:37 PM
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Thanks Bill - I need a 3N. The 3S would push 1.5mm out compared to the 3N - which may or may not clear the stays. I think I had tried to reach out to loosescrews previously myself.
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Old 02-21-16, 03:46 PM
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Originally Posted by habilis View Post
There's one consideration I didn't think of till now: The spindle you ordered will be JIS taper, but the thickness of the taper may be different than your older crank requires. I encountered that problem when mounting a new crank on an old (80's?) spindle. The crank wouldn't slide far enough onto the taper. For that reason, you may be better off with Bill's product, which is specifically made for Sugino cranks. Since you've already ordered the Sunlite, you may be able to check the fit and return if it's wrong.

The other option: any new JIS crank should fit a new JIS spindle like the Sunlite.
Thanks habilis - in response to your first post - my local bike shops all want to use a cartridge replacement. I figured once I have some spindle in place, I could work on taking the original around, and probably have more success.

Thanks for the JIS/ISO note - I, for some reason, had it stuck in my head that the Sugino's were all JIS, but I see from Sheldon Brown that it's probably ISO. Which would leave me, as you said, better off with Bill's option with the 3S size.

I guess for now I'm waiting for the SunLite to arrive. ..
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Old 02-21-16, 03:59 PM
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Originally Posted by royale81 View Post
Thanks Bill - I need a 3N. The 3S would push 1.5mm out compared to the 3N - which may or may not clear the stays. I think I had tried to reach out to loosescrews previously myself.
The 3S would clear the stays by an extra 1.5mm.
As long as the FDER will reach over that additional amount....
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Old 02-21-16, 05:02 PM
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I like Fujis and have owned a number of them including a Royale that I converted to an internal gear hub. That came as just a frame so I never saw the bottom bracket in it. I have replaced the bottom bracket on my Fuji Supreme and used a symmetric cartridge bottom bracket and it works fine. I used Sheldon's pages to determine which BB to get:
Sheldon Brown's Bottom Bracket Size Database

You should read these two pages as well:
Square Taper Bottom Bracket Interchangeability
https://janheine.wordpress.com/2013/...s-demystified/

And go over to the Classic and Vintage forum. There are many Fuji lovers over there who can help with any question you might have about the bike or its components.

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Old 02-25-16, 11:11 PM
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Originally Posted by Bill Kapaun View Post
The 3S would clear the stays by an extra 1.5mm.
As long as the FDER will reach over that additional amount....
Thanks Bill. The Sunlite is expected Monday, so I'll keep the 3S option open.
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Old 02-25-16, 11:20 PM
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Thanks reverborama, for the suggestions and links. I've read those pages already, understanding more each time I visit them, of course. I wasn't actually able to find a current symmetric BB that matched Sheldon's table.
I was hoping to stay with the non-cartridge type, for multiple reasons - hopefully either the Sunlite or the 3S suggested by Bill will work out fine.
Thanks also for the recommendation to the Classic and Vintage forum - I should spend some time reading that section.
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