WTB/Get More Info/Provide A Cautionary Tale Regarding: Sugino Chainring Spacers

[Zack]

Hey all.

My normal google fu is not turning up answers for this, nor has a call to Riv or a few local shops in Portland.

This is my problem:

I replaced my Sugino XD2 stock chainrings with the Rivvy Rings.  I didn't think that I needed the spacers as I had new rings (boy howdy was I wrong, lesson learned).  So now the space between the middle and the small chainring is bigger than the space between the Large and the middle, which causes the chain to "hang" in between the two rings.  I purchased .6mm spacers, which moved the middle chainring over just far enough so that the problem becomes the same, just between the Large and the middle chainrings (i.e. the .6mm spacer is too thick).

So, does anyone have any idea where to get more of these?  Or what size they are?  I have one in my hardware box, pic is attached so you know what I am talking about.

Also, if you have a Sugino crankset, keep these, they are important lol. 

[dougP]

Zack:

It sounds like you need spacers half as thick as the ones you have.  With Rivendell being the source of the new rings as well as Sugino, they should be able to advise you, and maybe point you to a source if they don't have them. 

dougP

[hsmitham]

what doug said.

~Hugh

[Patrick Moore]

That's funny. I end up with a workbench littered with those things and I've never quite figured out what they came from (well, I did suspect they were little spacers for chainrings, but never took the trouble to look closely.)

FWIW, I've never bothered to put them back on my two XD2s and I've never felt their absence, either with 8 or with 9 speed chains, either running them as triples or as middle 'n' inner doubles. 

If no one else has come through, I will be  happy to look if you email me on Friday night. I'm not at home now to look right away.

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[Garth]

Call Riv !  I ran into this same issue a few years ago and they very kindly sent me some round spacers n/c .  I'm pretty sure they were the same thickness as the one's in your pic, or darn close.

Yeah, the standard Sugino rings mess up the spacing big time compared to stock Sugino rings that come with a "regular retail complete" crank.  Unfortunately as far as I know you can't even buy them singly.  You can buy either that standard rings, or the high end ones, but not the ones that came with my XD2 152mm crankset. Those rings have awesome clearance ! 

[Philip Williamson]

I had this problem! I thought it was just me... 

I bought spacers at the bike shop. Then I returned them for ones half as wide. 

Philip

www.biketinker.com

[Chris Chen]

Beautiful picture! Explore! Fav'd

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[Dave Johnston]

I own or have installed about 5 of Sugino XD2 cranks and never seen spacers like that. I just pulled out a NIB box just to check. Is this on the version of the crank with the steel middle ring? 

-Dave

[Michael Hechmer]

Zach, I have owned three XD2 cranks and two of them needed 1-2 mm spacers to move the middle ring out and prevent the chain from falling between the middle and small ring.  This was right out of the box. A good LBS should have a collection of spacers.   There's also an on-line retailer - loose screws or loose parts - which specializes in these kind of small parts.

This plus the goofy hidden bolt create more set-up work than I welcome in a crank.  Too bad because it is otherwise a great value.

Michael

On Wednesday, July 16, 2014 3:13:28 PM UTC-4, Zack wrote:

[Michael Hechmer]

Oh yea, if you put a dab of grease on the crank at each hole it will help to hold the spacer in place while you reassemble the crank.

Michael

On Wednesday, July 16, 2014 3:13:28 PM UTC-4, Zack wrote:

[Cyclofiend Jim]

Loose Screws shut down a while back - they still have a website, but I don't think much is left at this point.  

I have kind of a love/hate relation with the XD2 - specifically, the hidden bolt arrangement makes me grumpy... But, it always seems to work OK.    I just replaced the cranks on the Quickbeam with a new XD2 - I actually just wanted the arms - I reused my Surly Stainless Chainring as it has amazing wear characteristics.  When I took the new ring off of the new arms, those dinky little spacers dropped out (actually, one had been misaligned when they inserted it and swaged itself into the hole a bit).  I just swapped over the wide ones from the old crankset, which worked fine for me.  Of course, on the QB, I'm only using toothed chainrings on the middle and inner positions - so it moved the "big" ring (middle position) a couple mm's inboard.  I don't think it will be a problem, but I have not tried to use the inner ring yet.

But, yeah - spacers.  They are just aluminum spacers.  Steel would work. Any bike shop with a decent parts drawer should have some if you don't want to wait until RBW sends them to you.  And +1 to Michael H's tip on grease to lock 'em down.  But, I got into the habit long ago of disassembling any crankset and greasing all the threads and touchy bits and retorque-ing everything anyway. This time I just had to swap rings at the same time.

https://www.flickr.com/photos/cyclofiend/14397987778/

- Jim / cyclofiend.com

[rcnute]

So that's why my chainring bolts have been spinning around!

Ryan

On Wednesday, July 16, 2014 12:13:28 PM UTC-7, Zack wrote:

[Garth]

Dave, the spacers as far as I can tell only come on riv sold ones with the basic Sugino rings. Mine came that way.  All other cranks I bought as complete with the ramped Sugino rings for other retailers do not have them, nor need them .  It's because of the basic rings that they are needed , the design is different from the OEM ones, which you cannot but aftermarket, which is too bad.

[Garth]

As far as the hidden bolt of the XD, I have found that not greasing the bolts at all, leaving them as they come from the factory, works so well I have not needed to use the little ring bolt tool.  It's still an exercise in futility to put it together though . . . lol.   Whoever thought that was a good idea ?  HaH !  

[Zack]

Follow-up note:

Per Mark at Riv, the Sugino spacers are .1mm.  

They also don't have any and have them on order from Sugino but it's going to be a month or so until they get them.  So, if you have any kicking around that you don't want to use, let me know!

 

[Zack]

Follow-up to the follow-up:

Thanks to Patrick I am going to have enough of these for one bike.  Good stuff.

Wondering if anyone else has more laying around - If you do, and are thinking well I have some but I better not let go of them because then I won't have any if I need them in the future, I would be happy to replace yours in a month when Riv gets more.  (Just trying to get both bikes back up and running for the summer).

[lungimsam]

Beware before messing with spacers on a crankset:

 

There was an article in Riv reader 41, pg 16 about a person who used spacers on his Sugino crankset to make something fit.

This caused not enough shoulder to hold the rings and the seperaters broke and the rig went ker-flooey.

Don't know if this applies to your situation, but thought I'd mention it for safety.

[lungimsam]

So wait, are you saying that the Riv rings do not fit  XDs crankset?

I didn't even know XD2's had spacers on them. I thought the rings just bolted to the cranks with no nonsense.

Please let us know how you worked this out as I was thinking of using SILVER rings to replace mine when they wear down. Thanks.

[Coconutbill]

Rivvy Rings = Silver rings. 

I kept my spacers  on what I believe is my Sugino XD2 crankset, but could have just as easily tossed 'em, when replacing my rings with the Silver ones.

I do notice that the gap between my lowest Silver Ring , and the middle ring, is much wider than the gap between the middle and large... 

[Zack]

This is just my basic understanding, so ymmv.

The spacers are necessary on the XD2 crank when you are using chainrings that are NOT ramped and pinned (like the Rivvy/Silver rings).  

It still seems weird to me that this spacer, which is .1mm, makes such a huge difference, hah.  

[David Johnston]

It might depend on the chain width as well. I am using an 8spd chain
with flat rings (40-26) with no spacers without issue, but then again
I don't shift to the granny very much and the setup has less than 200
mi on it.

-Dave

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[Chris Chen]

man I guess it's time to buy some 0.1mm material and find a drill press

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[David Johnston]

A coke can is about 0.1mm thick, or at least they used to be.

[Zack]

Mark at Riv confirmed the same, can should be around the right thickness.  My studio apartment doesn't have enough space for a drill press :-)