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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 02-28-06, 09:18 AM   #1
rodny71
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Do I have enough space in dropout?

I have short horizontal drop outs. 42x16 fits perfectly in the middle of the dropout, but that gearing seems to low. I have an opportunity to trade my 16 for a 15 with someone but i don't know if i have enough space to do it without having to start messing with the chain length and possibly having to buy a half link. can you guys tell from your wealth of experience if i can get away with it without changing the chain length?
Thanks
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Old 02-28-06, 09:27 AM   #2
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I'm pretty sure you can. With the 15, the axle will move back 1/8 of an inch. You have quite bit more than that there, and some "reserve" for when the chain stretches.
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Old 02-28-06, 09:40 AM   #3
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Keep in mind that it's going to go 1/8" straight back on a line going through your axle and BB spindle, so it's going to move a bit more than that up the dropout, maybe like 20% more depending on the dropout angle. Trig is your friend. You clearly have the room for that, but it's something to note if you start futzing with chain links or want to regear some day.

Edit: just did the math and realized the actual move in the first place is less than 1/8" anyway. OK, enough geekyness.

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Old 02-28-06, 10:32 AM   #4
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Thanks, I didn't realize it was such a small shift.
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Old 02-28-06, 11:36 AM   #5
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Why do I have a dropout fetish? I dont know why, but to me, a nice looking forged dropout totally makes a bike look better. Do you have a full-body shot?
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Old 02-28-06, 11:47 AM   #6
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sure, found the frame collecting dust in a rundown bike shop, salvaged it and put it together with a mix of parts.
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Old 02-28-06, 12:26 PM   #7
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looks nice
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Old 02-28-06, 01:16 PM   #8
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Gorgeous... are those sharks on the frame? are they decals? or did you have it repainted? What brand is it? how many questions did I just ask? --- 5
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Old 02-28-06, 01:32 PM   #9
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Originally Posted by Rikardi151
Gorgeous... are those sharks on the frame? are they decals? or did you have it repainted? What brand is it? how many questions did I just ask? --- 5
Thanks, its actually the original paint. someone, i assume the previous owner, carved sharks out of the paint and used marker to fill it in!
They pretty much ruined the paint on it. I was thinking about painting it but for now i like the ruff worn look makes it less attractive to thieves.
shop owner said its a 70's Atala, don't know the model.
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Old 02-28-06, 01:45 PM   #10
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here's more. how do you guys post large pic files?
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Last edited by rodny71; 02-28-06 at 02:01 PM.
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Old 02-28-06, 05:16 PM   #11
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why are those pictures so crazy looking
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Old 02-28-06, 06:35 PM   #12
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I think those pictures were taken through an aquarium...
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Old 03-01-06, 09:50 AM   #13
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is this better? *****es!



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Old 03-01-06, 10:15 AM   #14
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Nice.
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