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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 05-19-13, 12:33 PM   #1
Frankfast
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42T Chainring

Looking for a nice looking 42T Chainring 130BCD. Don't want 110/130. Know where I can find one?
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Old 05-19-13, 12:41 PM   #2
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http://www.universalcycles.com/shopp...&category=2629
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Old 05-19-13, 12:59 PM   #3
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42T used to be a really common inner chainring for road bikes, so there are plenty of used ones out there in good shape, too.
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Old 05-19-13, 01:02 PM   #4
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42T used to be a really common inner chainring for road bikes, so there are plenty of used ones out there in good shape, too.
OK to use a chainring from a double or triple for fixed gear?
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Old 05-19-13, 02:28 PM   #5
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OK to use a chainring from a double or triple for fixed gear?
Yup, just make sure you use single speed chainring bolts
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Old 05-20-13, 09:24 AM   #6
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That is expensive for an all-city chainring.

Sugino-
http://bikeisland.com/cgi-bin/BKTK_S...ils&ProdID=250

Soma-
http://bikeisland.com/cgi-bin/BKTK_S...ls&ProdID=1315

Surly -
http://surlybikes.com/parts/stainless_steel_chainrings
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Old 05-20-13, 09:55 AM   #7
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Hey guys thanks. I think I'm going with the Sugino.
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Old 12-04-13, 12:53 PM   #8
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I'm also looking to get a 42T chainring replacement for my wife's Torker. I've been having trouble finding 1/8" chainrings, which my friend who is helping with this said is important, the couple that I have found are all $50+, is that the range I should expect to pay (vs. ~$30 for a 3/32")?
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Old 12-04-13, 12:56 PM   #9
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I'm also looking to get a 42T chainring replacement for my wife's Torker. I've been having trouble finding 1/8" chainrings, which my friend who is helping with this said is important, the couple that I have found are all $50+, is that the range I should expect to pay (vs. ~$30 for a 3/32")?
It is not important to have a 1/8" chainring. You can run a 1/8" chain on a 3/32" chainring without any problems. (But not the other way around.)
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Old 12-04-13, 01:10 PM   #10
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It is not important to have a 1/8" chainring. You can run a 1/8" chain on a 3/32" chainring without any problems. (But not the other way around.)
+1

You're wife would have to be quite the bike monster to do any damage because of a missing thirty-second of an inch.
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Old 12-04-13, 01:14 PM   #11
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I have several of these FSA rings and haven't had any problems.
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Old 12-04-13, 01:18 PM   #12
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Thanks for the info, I thought he had said that if I got a 3/32" that it would wear quicker with a 1/8" chain, but maybe I misunderstood. How about inner, outer, or center?
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Old 12-04-13, 01:26 PM   #13
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Thanks for the info, I thought he had said that if I got a 3/32" that it would wear quicker with a 1/8" chain, but maybe I misunderstood. How about inner, outer, or center?
It will wear "faster" than a 1/8th just due to less metal contact but it's so minimal it's not worth worrying about.
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Old 12-04-13, 02:37 PM   #14
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It will wear "faster" than a 1/8th just due to less metal contact but it's so minimal it's not worth worrying about.
So, does that mean the only thing I have to worry about when getting a replacement is # of teeth and BCD? Sorry, still a bit new at this and confused about all the options.
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Old 12-04-13, 02:41 PM   #15
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So, does that mean the only thing I have to worry about when getting a replacement is # of teeth and BCD? Sorry, still a bit new at this and confused about all the options.
Pretty much. Here is an article about chainlines to answer your other question about whether it should be inner or outer etc.
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Old 12-04-13, 03:28 PM   #16
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Thanks for the link. I don't see an exact matchup there which I think is the same as the OP (42T, 130mm BCD), but it gives me a better understanding of what certain terminology means and what is going on. So I guess the other thing I want to look out for is not to get a ramped and pinned chainring, and I also want to make sure that the teeth are symmetrical (where as for geared bikes they won't be)?

I'd been wanting to buy via Amazon since I have some credit there right now, but I'm thinking it might just be safer to buy the FSA that GregJones linked to or one of the others linked earlier in the thread.
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