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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 02-27-09, 09:58 PM   #1
chase!
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Chainring help

Apologize in advanced if this is to beginner, i'm really new to this.

I have a '09 Kona Paddy Wagon (http://www.konaworld.com/09_paddywagon_u.cfm) and the chaingring is 42t and I have such a hard time keeping up with a friend runnin 46/16. The specs on the site don't really show much info on what I need. I believe I should get a 46t, but am also thinking 48t.

Would this chainring work and is it okay?- http://cgi.ebay.com/NEW-SUNTOUR-CHAI...3286.m20.l1116 I assume I'd have to get a longer chain also, how hard is sizing a new chain? I'm willing to learn but if it's going to cost a lot more in tools I suppose I can have a shop do it.

I guess the biggest question is what am I looking for to make sure it will fit my crank. I see a lot of weird numbers and things like "10 speed chainring" and such.
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Old 02-27-09, 10:15 PM   #2
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get a 15t cog in the back and you'll be running a comparable ratio as your friend.
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Old 02-27-09, 11:58 PM   #3
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That Suntour should work, I think the crankset on your bike is 130BCD, so look for chainrings at 130BCD.

But I would agree with tFUnK, It would be less expensive to just get a 15t cog. You can get a really nice Dura-Ace cog for like 20 bucks.
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Old 02-28-09, 01:24 AM   #4
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Would a 14t cog be a little overkill then? I know for a fact my LBS has that instock.

And thanks for the info.
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Old 02-28-09, 01:42 AM   #5
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Its not that high of a gear, but if you skid, you would only have one skid spot...
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Old 02-28-09, 01:46 AM   #6
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the 15t will be almost exactly what your friend rides. The 14t will be a bit taller. It's about 10% taller a gear than what you are running now. You will notice a big difference trying to stop, but your top speed will get higher.
Even if you find out that the 14t is too small and end up buying a 15t later, you will still spend less than you would from buying a new chain ring.
You may still end up shortening your chain a bit. It's not a big deal, but you need a tool.
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Old 02-28-09, 02:00 AM   #7
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Okay, thanks a lot. I'll see if they have a 15t in stock, if they don't i'll probably go for a 14t and order a 15t. Right now I have a freewheel on the non-crank side, so i'll put whatever gear I get there for some flip flop action.
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Old 02-28-09, 03:49 AM   #8
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I may have misread what you wrote and you probably already know this, but I am going to type it anyway to cover the bases:

Do not put a cog on the freewheel side. It will come off if you backpedal as there is no threaded section for a lockring. A will ensue.

Juuuuust in case...
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Old 02-28-09, 03:55 AM   #9
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Oh really. Okay, I didn't know they were attached different ways. Thanks.
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Old 02-28-09, 11:00 AM   #10
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Keep in mind that a +/- 1T difference in the back is a big difference already. 2t would be massive.
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Old 02-28-09, 04:17 PM   #11
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Okay, last question. Will a 3/32 cog work on a 1/8th chain? I'd imagine i'm running 1/8 right now.

Edit: nevermind I found info about it.

Last edited by chase!; 02-28-09 at 04:41 PM.
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