Best cog size for a 49t chainwheel
11-16-10, 09:58 AM
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Best cog size for a 49t chainwheel
Excuse the ignorance, but I just picked up a Suntour Superbe Pro crankset with a 49 tooth Sugino 75 chain ring with which I plan to convert an 86 Peugeot Triathlon (PSV).
What would you suggest is the best cog size for me to use in a relatively flat city (Boston). I'll need to clear a few hills, but I hate spinning crazily when I'm on a nice clear bikepath. Does 17t sound right? Should I go lower?
What would you suggest is the best cog size for me to use in a relatively flat city (Boston). I'll need to clear a few hills, but I hate spinning crazily when I'm on a nice clear bikepath. Does 17t sound right? Should I go lower?
11-16-10, 10:05 AM
#2
Your cog is slipping.
Personally, I would go 17 or 18. It's relatively flat where I live and I find 48/17 to be an ovverall perfect ratio for the riding I do.
11-16-10, 10:53 AM
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I'm with Scrod. 17 or 18 would be most comfortable, and best for all-purpose fixed riding. If you're going to use it to race, you might go 15/16, but I think 17/18 would be far better for a street bike.
11-16-10, 11:11 AM
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17 if you are in fit shape, 16 if you ride more than a few times a week and like to hang around 22mph when cruising. 18 if those hills you have to clear are something you have to ride often.
I ride a 48/16, 700x23c, 170mm crank and fits my rider perfectly for mostly flat, occasional hill.
I ride a 48/16, 700x23c, 170mm crank and fits my rider perfectly for mostly flat, occasional hill.
11-16-10, 11:14 AM
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I run 48/17 and its great. My commute has a few decent hills and a few decent downhills. I spin at about 25MPH on straights/slight downs and never have a problem with spinning out. I can handle most "hills" without standing and pedalling. i think its my ideal ratio for now. Probably going to try a 19t out.
11-16-10, 12:03 PM
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My carpet fiber fixie is 49x18.
11-16-10, 12:31 PM
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I'm in Boston too, and I ride 48/18 every day. In my opinion, it's a good ratio for the area, but it might be too high for someone who rides only occasionally or someone who wants to cruise a little easier on flat sections.
11-16-10, 01:24 PM
#11
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17t is the place to start. You'll figure it out from there.
11-16-10, 01:28 PM
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Excellent. I'll start with 17 and see where that gets me. Many thanks.
11-16-10, 01:36 PM
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saw it now, nevermind......
Last edited by vw addict; 11-16-10 at 01:37 PM. Reason: blind
11-16-10, 05:28 PM
#17
Your cog is slipping.
Where did you get that pic of my legs???
11-16-10, 05:38 PM
#19
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48/19 in seattle is barely manageable. then again, if you need to clear a few 'hills' in boston, we in seattle might call them 'pebbles.' 17 is probably fine.
11-16-10, 06:35 PM
#21
Your cog is slipping.
I knew that was you!
11-16-10, 06:44 PM
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11-16-10, 07:08 PM
#24
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not on 49/17 you won't.
i'm not saying there aren't hills out east, i'm saying you didn't build your cities on them.
i'm not saying there aren't hills out east, i'm saying you didn't build your cities on them.