Singlespeed & Fixed Gear - chainring quest

I'm after a new chainring and despite looking high and low, can't find what I'm after.

-48T
-130bcd
-3/32"
-for 5 arm crankarm
-Silver in color
-with cutouts (like the Sugino Mighty Comp or even the TA rings...some sort of cutout. I know I can get the Rocket Rings or Salsa or Surly rings, but I really don't like the solid chainrings in terms of looks.)

If anyone knows the secret to locating one, I'd be happy to hear from you!

http://www.businesscycles.com/trcomp.htm#chainrings

Hey Aeroplane,
Thanks for the offering...but the only ring in 130bcd & 3/32" is that Sugino 130J. That is just one of the solid rings and I'm hoping to find one with some nice cutouts.

Any one of about 100 different brands of old road chainrings. ebay. used bike shop/coop.

I was going to say road chainrings also.

were there ever 130 rings with cutouts like 144 rings?

were there ever 130 rings with cutouts like 144 rings?
Yep, here are 2 old shimano 600 rings that I have:
(52/42, ca. 1980, no they're not for sale)

Yep, here are 2 old shimano 600 rings that I have:
(52/42, ca. 1980, no they're not for sale)

Problem is that you're rarely going to find anything between 42 and 50 in old road rings.

Yes, thank you for pointing that out Landgolier. 48 tooth is not easy to find in an older road ring.

Yes, the pictures that BostonFixed posted are what I'm after.

So...anyone have any suggestions? I'm still striking out...

Some variations on the rocket ring/basic chainring from danscomp or harris actually have cutouts like that, I actually have a 48 like that come to think of it. They have that whole two sets of holes thing, but they do kind of have that look.

Looked at Dan's Comp and they all look like BMX rings to me or 4 spider arm rings. Have looked at Harris a bunch and not able to find what I'm after. Even the ring that is on the Sugino RD crankset is what I'm after, but I can't find it sold just as a chainring.

I'm in the same boat. My LBS can order the Sugino chainring, but it's out of stock. What's worse is that I'm also trying to find the same thing in black to match my black RDs. That is impossible. Luckily, I'm willing to accept either 48t or 52t, so I can find road rings that fit and just ignore the ramps and pins. Actually, I have a black 48t FSA chainring, but I'm still half-heartedly searching for something a little more plain.

they make a rocket ing that is cut out like that they are aso pretty cheap

I ordered the universal chainring (http://www.danscomp.com/459030.php?cat=PARTS) from danscomp and the 48 tuff neck I got had the cutouts. The 47 was just a flat piece like in the pics and branded rocket, not TN. As with so many things in life, actually calling the retailer gets you a lot farther than teh intrazebs.

I'd try out TA stuff... 130 and 1/8".

Bah. I'd be happy with ANY STYLE, ANY BCD 1/8" 36T chainring. Sadly, they don't seem to exist.

Bah. I'd be happy with ANY STYLE, ANY BCD 1/8" 36T chainring. Sadly, they don't seem to exist.


1/8" chain is happy as a clam on 3/32" rings

1/8" chain is happy as a clam on 3/32" rings

Not that argument again.

Not that argument again.


I didn't think people really argued about this one, it works fine, you just loose a little of the advantage of large engagement area that 1/8" chain has.

TA, Sugino and Rocket Ring all make a 48t, 130bcd, 3/32" ring.

The TA product code is TAF48:
http://www.evanscycles.com/product_images/F894.jpg

I didn't think people really argued about this one, it works fine, you just loose a little of the advantage of large engagement area that 1/8" chain has.

I didn't mean to say there's a war brewing regarding this. What I meant to say is, when I point out that 1/8" 36T chainrings, in any BCD or style, simply don't exist, there's always someone pointing out the obvious and by now very tired point that one can use 3/32" chainrings. Well DUH, but that's not what I want.

What I want doesn't exist. :(

I didn't mean to say there's a war brewing regarding this. What I meant to say is, when I point out that 1/8" 36T chainrings, in any BCD or style, simply don't exist, there's always someone pointing out the obvious and by now very tired point that one can use 3/32" chainrings. Well DUH, but that's not what I want.

What I want doesn't exist. :(

Have you tried BMX gear?

Thanks, Rattlebag. That is just the type of ring I'm looking for. Now I just have to find a U.S. dealer for them, since I've only found UK and German dealers after a short search.

I also still haven't found a Rocket Ring or Sugino ring with cutouts in 130bcd, 48t, 3/32". I looked around so if someone would like to share a link to a dealer that would be cool. All I've found from those two are solid rings.

Have you tried BMX gear?

No, though probably such chainring exists for those strange BMX cranks. The world of BMX is strange to me, I don't understand any of that stuff - very alien to me. I know that BMX bikes have a larger BB shell, weird cranks, and weird chainrings with an eccentric hole.

So maybe this is a good opportunity to ask: how does one go about using one of those werid BMX chainrings on a bike with a normal BSA BB?

Well DUH, but that's not what I want.

What I want doesn't exist. :(

Profile makes a BMX ring that takes a normal 110 spider. Is it 1/8"? I dunno, email them and ask them. It damn sure works with 1/8".

Thanks, Rattlebag. That is just the type of ring I'm looking for. Now I just have to find a U.S. dealer for them, since I've only found UK and German dealers after a short search.

I also still haven't found a Rocket Ring or Sugino ring with cutouts in 130bcd, 48t, 3/32". I looked around so if someone would like to share a link to a dealer that would be cool. All I've found from those two are solid rings.

Again, what you need to do is call some shops and ask them if they have Tuf-Neck rings in 48t. To my knowledge the company doesn't exist or make these any more, but they're essentially the same thing as rocket rings. Plenty of shops are going to have them around, but nobody's going to bother listing "hey, some of these are tuf-neck, some are rocket, we're going to send you whatever we have" on their web site. Danscomp may have them, or they might not, I probably got the last ones as it was on sale. The other thing you can go is watch ebay, there are a ton on there right now, just no 48's. Here's what they look like:

http://i20.ebayimg.com/02/i/000/9f/43/ef95_1.JPG

They're not the most quality part in the world, I ran mine for about 1000 miles and the teeth had substantial plastic deformation where they engaged the chain. It was still OK, I just wanted to gear down for a while so I went to a 47 that's a rocket. Not sure if these were proper 6061 or something chincy, I have the rocket on there right now that is 6061 so we'll see if it does better. I'm starting to think that chainrings that aren't 7075 are a waste of money, though.

Profile makes a BMX ring that takes a normal 110 spider. Is it 1/8"? I dunno, email them and ask them. It damn sure works with 1/8".

Is it this company? http://www.profile-design.com/
If it is, they don't make chainrings anymore.

http://www.profileracing.com/products_home.php?productid=6

http://www.profileracing.com/products_home.php?productid=6

I'm almost 100% sure it's a 3/32" line of chainrings.

But just in case, I sent them an e-mail asking whether it is, or is it a 1/8"


If it's 1/8", then I owe you one.

They're going to tell you the same thing everyone else has: it doesn't matter.

Have you realised that 3/16 is bigger than 1/8, whereas 3/32 is smaller?

Have you realised that 3/16 is bigger than 1/8, whereas 3/32 is smaller?

Obviously, I haven't. At first. While the brain was sleeping.

OK, time to order some chainrings.

I owe Landgolier one.

EDIT: the tech guy sent another e-mail, in which he backpedaled and apologized for the missunderstanding: the chainrings are, indeed, 3/32".

I owe Landgolier nothing. Sorry :D

I guess the billet stock was 3/16, and they're machined from that. I wish they weren't so ugly, they'd be a nice alternative to rocket rings for 110 if they're round.

And seriously, what's your problem with running 1/8 chain on a 3/32 ring? I've been doing this for years and 1000's of miles, no problem, no noise, no nuthin'.

And seriously, what's your problem with running 1/8 chain on a 3/32 ring? I've been doing this for years and 1000's of miles, no problem, no noise, no nuthin'.

I have my reasons. Why would I have to justify my needs or requirements to anyone? FYI, all except one of my drivetrains are 3/32", so it's well represented - I have no ideological animosity against 3/32"

Well, no offense, but if you kvetch in public about something pointless, expect people to point out that it's pointless, and ask if you have a good reason why it's not pointless.

Well, no offense, but if you kvetch in public about something pointless, expect people to point out that it's pointless, and ask if you have a good reason why it's not pointless.
Hey asshat, forgetting how this thread started, are we?

I'm after a new chainring and despite looking high and low, can't find what I'm after.

-48T
-130bcd
-3/32"
-for 5 arm crankarm
-Silver in color
-with cutouts (like the Sugino Mighty Comp or even the TA rings...some sort of cutout. I know I can get the Rocket Rings or Salsa or Surly rings, but I really don't like the solid chainrings in terms of looks.)

Nobody went on questioning the OP's reasons. And that's how it shold be.
You don't like what I want? Well, you can go **** yourself for all I care.

Hey asshat, forgetting how this thread started, are we?


Nobody went on questioning the OP's reasons. And that's how it shold be.
You don't like what I want? Well, you can go **** yourself for all I care.
Your reasons are irrational. As is an all 1/8" drivetrain.

Your reasons are irrational. As is an all 1/8" drivetrain.

My reasons (which you don't even know) are more rational than the colour (color, for you in the USA) or style of a chainring.
For the rest of my answer to you, I refer you to this post. (http://www.bikeforums.net/showpost.php?p=4483074&postcount=37)

But if you or anyone else still thinks I should justify my needs to anyone, here's a useful link (http://www.amishrakefight.org/gfy/).

"I like the way it looks" is a perfectly good reason to do something, as long as you're honest about it. As for running 1/8 chainrings for a non-track build, the only good reason is to increase contact area and decrease chainring wear, which is moot given that you're already proven that 1/8 chainrings in the size you want are on the shelf next to the holy grail. That or you want to run a colored chain that doesn't come in 3/32, which doesn't sound like your deal either. If you've got some new and innovative thinking on the subject, you've got a ready audience of us asshats who would like to hear it. Otherwise, save it for the cars, I've been sworn at on the internet by people who were way better at it than you.

Okay, I even stopped at one of my local shops today and couldn't find what I was after.

I will mail $5 to anyone who can post a working link to an online shop that sells a 48t, 130bcd 3/32" chainring in silver with cutouts.

http://cgi.ebay.com/Chain-Ring-48-teeth-Fixed-Single-Track-BMX-NEW_W0QQitemZ220111849773QQihZ012QQcategoryZ48843QQcmdZViewItem

Closed 4 days ago while we were discussing all of this. Watch the 'bay, they come up. Or contact that seller, looks like they have lots of stuff like this.

what does bcd refer to?

Landgolier, thanks, but that chainring is 1) not what I'm looking for (it is ugly) 2) looks to be made of a pepsi can

Thanks though. I'm after something like BostonFixed posted in pg. 1 of this thread...and old Shimano 600 ring with cutouts or a TA with the cutouts. That type/style. Yes, I'm quite specific about what I put on my bikes and what I spend my money on.

Griffin...bcd is bolt center diameter...take a nice metric ruler and measure between the bolt holes on your chainring, or your crank arm, and you'll see. They vary from track to bmx to road to...

You need to know this to mate a chainring with a crank arm.

Hate to tell you, but if you want oblong cutouts, 48t, and 3/32", you're probably just as hosed as the other guy. Old road stuff like 600 never had a 48t ring. Campy pista looks like this, but that's 144 or 151 and 1/8". Normal triangular cutouts would be easy, but I think you didn't want that. Current DA track has mini oblong holes, but that's 144. Tuf-neck has what you want, but are crap and the extra holes are unsightly.

Here's as close as you're going to get, as far as I know:
http://www.zefal.com/stronglight/BASES/PRODUIT/image/prodKit130image.jpg
Current stronglight road for shimano (130)

Griffin...bcd is bolt center diameter...take a nice metric ruler and measure between the bolt holes on your chainring, or your crank arm, and you'll see. They vary from track to bmx to road to...


Not quite. BCD = Bolt Circle Diameter, i.e. the diameter of the circle that the centers of the bolts define. Center to center measurement between adjoining bolts x 1.7 gives you the actual number, at least for 5 bolts. If you can't figure out how to do it for a 4 bolt MTB rig, I can't help you :). 110 is old road, newer compact double road, or the few BMX 5 arm rigs ('cept maybe campy, I have no idea). 130 is newer road, most triples. 135 is campy road buy our proprietary stuff as if we weren't overpriced enough already. 144 is old campy and a lot of current track stuff. 151 is old campy. 74 is current road inner rings for triples, campy and shimano. 130 is probably easiest to find in whatever you want these days. 110 is also pretty easy, and 144 isn't that bad, not really much more expensive than comparable 130 but certain sizes can be hard to find.

Landgolier - thanks for the clarification. Yep, I was wrong on the BCD.

That chainring you posted above on the left is what I'm after. I've looked around, but can't find any internet dealers. Any ideas?

1/8" chainring 1/8" chain 1/8" cog.... seems simple to me.:rolleyes:
i love my 1/8" drive line.

http://www.xxcycle.com/standard-130-dural-shi-1,,en.php

$18, shipping from france is like $10

Maybe someone already suggested this, but just stop into
the older bike shops around your town. Most of them have
boxes full of old chain rings sorted by BCD. I got my Sugino
Mighty for $10 out of one of these old crates.