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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 01-27-09, 04:22 PM   #1
mickey_
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16t, 17t, or 18t cog?

Just got my Windsor Clockwork, and I'm going to head over to my LBS to pick up a fixed cog for it. I'd like some input on what size I should get for what I intend to do with the bike.

I'm going to be riding around campus in a moderately flat area with a lot of pedestrian and car traffic. Right now I'm riding 46/16 with a freewheel, but I'm not sure if that gear ratio will be too high to stop quickly when pedestrians decide to run in front of me or when cars decide they want to merge without looking if I'm riding fixed. I was thinking about going up to a 17t or 18t cog.

I don't have the money to get more than one cog, do any of you who ride in cities/college campuses have any input?
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Old 01-27-09, 04:24 PM   #2
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Relatively flat in my area, I'm currently running 48/17 because there is not a lot of wind this time of year when I'm riding (mornings and after dark.) In the summer I ride 48/18 to give me some relief during the howling afternoon winds.
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Old 01-27-09, 04:27 PM   #3
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I ride in a relatively flat area, and 46/17 is perfect for me. Plus you get 17 skid patches. 46/18 gives you 1...or 2.
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Old 01-27-09, 04:27 PM   #4
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17 for the skidz. But keep your brake on and you won't have to worry about stopping on time.
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Old 01-27-09, 04:30 PM   #5
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Right now I'm riding 46/16 with a freewheel, but I'm not sure if that gear ratio will be too high to stop quickly when pedestrians decide to run in front of me or when cars decide they want to merge without looking if I'm riding fixed.
It shouldn't matter since you're running a brake(s).
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Old 01-27-09, 04:34 PM   #6
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1) get a brake for stopping. please.

2) how does the 46-16 work for you on the 'going' front? acceleration is quick/ok/painful? top speed limited by strength or leg speed? let this determine your gear.

i run a 46-16 and am a fairly strong rider in a moderately hilly area. i ride the fix almost exclusively for training purposes. it's perfect at 20-22mph, too much on steep hills, and too little in a fast paceline...that's why there are derailleurs.

with that as background, if it were me, in a flat campus environment where acceleration trumps top speed, if i were foolish enough to endanger the safety of others by going brakeless...i would damn sure want a lower gear than 76 inches. 17t = 71in, 18t = 67in. go for the 18 and bust some madd skidz (9 patches, actually).
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Old 01-27-09, 04:41 PM   #7
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I ride in a relatively flat area, and 46/17 is perfect for me. Plus you get 17 skid patches. 46/18 gives you 1...or 2.
what are they teaching kids in school these days?
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Old 01-27-09, 04:49 PM   #8
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i ride 46/17 in a pretty flat place, but if it's that tough for you now you might want to go up to the 18.
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Old 01-27-09, 07:59 PM   #9
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I ride in a relatively flat area, and 46/17 is perfect for me. Plus you get 17 skid patches. 46/18 gives you 1...or 2.
Basing a chainring/cog combo on skid patches is stupid.
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Old 01-27-09, 08:02 PM   #10
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Well the OP is obviously intending to go brakeless so skidding/skipping would in handy, and the more the better.
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Old 01-27-09, 08:23 PM   #11
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Well the OP is obviously intending to go brakeless so skidding/skipping would in handy, and the more the better.
No, running a lower gear is handy as you can skid/skip easier. And it is stupid to base a setup on skid patches. Ride what works best, if you skid to stop with no brakes and are worried about wearing out a tire use cheap tires. Or once a week remove the wheel, lift the chain off the cog and rotate the wheel forward and put back on. New unworn spot to skid on. If the op is worried about the ability to stop and avoid peds on campus, he/she needs to ride slower and use a brake.
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Last edited by pyze-guy; 01-27-09 at 08:51 PM. Reason: brake, not break
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Old 01-27-09, 08:35 PM   #12
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lock up and walk around on campus, i just go to the middle of campus and lock up, and set your schedule up w/ enough time to walk to each class, then you can get whatever ratio you want and not worry about stopping for students ;-)
i ride 46/16 and love it i just moved up from a 14, like everyone said if you want more skid patches go to 17 but if your new to fixed then i wouldnt be concerned w/ skids and tricks, just control, and if you're trying to learn to skid, get clips, i wont lecture you into getting a brake but im sure most would advise
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Old 01-27-09, 08:49 PM   #13
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I ride in a relatively flat area, and 46/17 is perfect for me. Plus you get 17 skid patches. 46/18 gives you 1...or 2.
+1, 46/17 works for me.
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Old 01-27-09, 09:03 PM   #14
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No, running a lower gear is handy as you can skid/skip easier. And it is stupid to base a setup on skid patches. Ride what works best, if you skid to stop with no brakes and are worried about wearing out a tire use cheap tires. Or once a week remove the wheel, lift the chain off the cog and rotate the wheel forward and put back on. New unworn spot to skid on. If the op is worried about the ability to stop and avoid peds on campus, he/she needs to ride slower and use a brake.
Definitely, but 46/17 is not a high gear by any means, so skidding should be easy.
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Old 01-27-09, 09:18 PM   #15
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Basing a chainring/cog combo on skid patches is stupid.
He said "Plus I get 17 skid patches" not "I ride 46x17 cause I get 17 skid patches" People around here need to read before being such judgemental @sses!

I also ride 46x17 and chose this setup because its 71 Gear inches AND since I ride brakeless I get 17 skid patches as a bonus to the gear I want to run. OP go with the 17, you won't regret it.
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Old 01-27-09, 09:23 PM   #16
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46x17 is the best all around gearing imo.. great skid patch too
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Old 01-27-09, 10:06 PM   #17
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I run 48x16 in similar conditions around my campus, and it works out great. I'd say 16 if you're running brakes, 17 without for teh skidpatchez.
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Old 01-27-09, 11:13 PM   #18
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17 for the skidz. But keep your brake on and you won't have to worry about stopping on time.
this
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Old 01-28-09, 02:02 AM   #19
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what are they teaching kids in school these days?
meh...46/18, 48/16 whats the difference anyway.
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Old 01-28-09, 06:03 AM   #20
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i am going from 48/16 to 46/17. lower gear inches mean i can ride up the hills i live in and as a bonus i got more skid patches. don't know how it rides yet, just came yesterday and i forgot my mail at my parents hose when i was leaving (hands full of laundry).
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Old 01-28-09, 08:54 AM   #21
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wow i must be a vagina! i run a 42X17 lol
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Old 01-28-09, 08:56 AM   #22
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jumped from 48-16 to 48-19 last night, but havent had a chance to spin it out because of the inclemency.
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Old 01-28-09, 12:03 PM   #23
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He said "Plus I get 17 skid patches" not "I ride 46x17 cause I get 17 skid patches" People around here need to read before being such judgemental @sses!
Oh I can read and in no way was I being being judgmental of the persons choice of gearing, I never said riding 42/17 was stupid, I said that choose a gearing based on the skid patches is gives is stupid.

Now, me thinking you are an ***** based on your silly little post, thats being judgmental.
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Old 01-29-09, 06:13 AM   #24
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What is a "skid patch"?

I've only been riding single speed a few weeks (42x16 I think), so you'll have to forgive what is probably a dumb question...
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Old 01-29-09, 08:02 AM   #25
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well that was wierd. i got a few words of my post in then it posted. but i got my mail! hopefully i can toss on my chain ring and cog tonight and try out 46/17.
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