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spinners, how low do you go in the gear inch department?

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spinners, how low do you go in the gear inch department?

Old 06-09-10, 08:48 AM
  #1  
astroman
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spinners, how low do you go in the gear inch department?

i just went from 50/18 (about 74 inches) to the stock steamroller gearing of 47/19 (about 66 I gather). man, i have never spun so fast. i live in a flat area and i guess i don't go that much slower, but i find it almost unbearble fitness wise. i have no spinning fitness. none. the good news is my knees are gold. so have any of you gone down the big down gearing route and found it tough at first? and how low do some of you gear?
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Old 06-09-10, 09:01 AM
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44/17 is my gear for putting around with BMX friends or heading to cities with hills.
Sometimes commuting, but I generally end up spun out too often as i like to keep a fast pace.
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Old 06-09-10, 09:15 AM
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I'm running 46/17 right now and on the flat streets of Toronto it's normally adequate, but if I've got open streets in front of me, the spinning can be a bit unbearable; then again maybe I just have terrible form. I'm considering getting a 48T chainring as getting a 15T cog would be too big of a jump ATM, I think.
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Old 06-09-10, 09:37 AM
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34x15 on 700x35
tires were studded so that added a lot of rolling resistance.
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Old 06-09-10, 09:43 AM
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46/17, wouldn't go lower than that. My ideal would be 48/17. And i can spin super fast so its not like i cant do it, it just seems too much sometimes.
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Old 06-09-10, 10:01 AM
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45/18

spin for days! good for the knees.
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Old 06-09-10, 10:05 AM
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I liked 44/17 a lot, but I sold that cog, so now I'm doing 44/16. Spinning makes for better technique.
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Old 06-09-10, 10:10 AM
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I'm running 49x16 on my felt (81gi) and 46x17 on my kilo (72gi). I love the feeling of a lower cadence on the felt but it can feel like I'm pushing a tank around at times. I think my kilo is more of a proper gear ratio for the city. I like having the choice though. Jumping on the kilo is such a drastic difference. I like the challenge of pushing higher gi. It makes the bike a whole different machine.
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Old 06-09-10, 10:33 AM
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46x20 and 39x17 so thats right around 60 on both of them.
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Old 06-09-10, 10:57 AM
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48/17 on 700x23c tyres
thinking about dropping down to 46/17 and putting on 700x28c tyres. what you guys think?
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Old 06-09-10, 11:16 AM
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Originally Posted by VA_Esquire View Post
48/17 on 700x23c tyres
thinking about dropping down to 46/17 and putting on 700x28c tyres. what you guys think?
plug it into sheldon brown's gear calculator.
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Old 06-09-10, 11:56 AM
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Well I went the other way recently and gained speed. Went from 44/15 to 49/16. My cadence stayed the same. Around 80rpm. Not really spinning to some, but from 20 years of 43/18 on bmx it feels right. Mess with your gears, hook up a speedo and see what works for you and your knees.

I honestly think changing ratios often is a good thing. Mix it up.

Last edited by Dr. Banzai; 06-09-10 at 12:31 PM. Reason: 46! Hah!
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Old 06-09-10, 11:57 AM
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49/46 lol.
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Old 06-09-10, 12:12 PM
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Road bike has a 52 with a 17 and a 19 fixed cog... 72 and 80 gear inches which puts me just above and below my preferred 76 gear inches that I run on singles.
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Old 06-09-10, 12:27 PM
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Originally Posted by generate View Post
I love the feeling of a lower cadence on the felt but it can feel like I'm pushing a tank around at times.
Agree with this.

Right now, I'm at 48/18 (70.1 GI), and I think it's working well. Might go back to 48/17 though. I miss the slightly lower cadence I could carry at this gearing and it's still not a big enough difference to make it grueling. Also, gives me more skid patches.

Originally Posted by blickblocks View Post
Spinning makes for better technique.
Interesting. How so? I also thought of trying out 48/19, but figured 66 GI would just be too "spinny" for my tastes. Sell me on it!

I might just remove the 18T, and just get a 17T and a 19T for each side of the hub.
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Old 06-09-10, 12:36 PM
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Optimum RPM is also dependent on your quad size too. You can't rev a V8 to 9000 rpm or expect a 1.6 4banger to make torque at 1500 rpm.

OP - I went down to 44/15 and had fun with it. Spun lots. Built my legs/knees up etc. It wasn't "tough" as you ask but I was bouncing a bit until I got my stroke more circular. If you can spin and not get bucked off down the steepest hill you frequent then hey, you seem to be doing well.
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Old 06-09-10, 12:46 PM
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46/17 like everyone else, but I have gone down some very steep hills on that for extended periods. I'd say I'm a good spinner.
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Old 06-09-10, 01:07 PM
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Originally Posted by AEO View Post
plug it into sheldon brown's gear calculator.
This is a good one too:
https://software.bareknucklebrigade.c...it.applet.html
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Old 06-09-10, 01:54 PM
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46/19 for the hills of Seattle. Was doing 46/17 for a while, and i still like that better for the flats and mild hills. But on top of Capitol Hill where i am now, I need the easier gearing.
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Old 06-09-10, 02:11 PM
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50/10 wiggity
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Old 06-09-10, 02:27 PM
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42/17 100rpm's is 20mph I can sit around there for a good amount of time....it took a while for my legs to adjust but now I wouldn't trade it for anything
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Old 06-09-10, 02:37 PM
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42-16 on my Leader and 45/17 on my Luongo. I was really messed up by the light 42/16 at first, but I've gotten pretty good at spinning it up. You won't win races but it helps me keep up my speed while cutting through traffic. No more turning only to have to mash back up to speed.
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Old 06-09-10, 02:59 PM
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I have a 66/74 on my fixed touring bike... the 66 is only used when the conditions are harsh or when I have been riding with slower groups as with the 66 I can still maintain a comfortable cadence and not drop everyone.

The winter bike has a 57/64 and for summer use will have to gear it up as everywhere I go is a spin fest.
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Old 06-09-10, 03:34 PM
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48/20 (63 GI) on my Premium Brew. Awesome for leisurely cruising around (which is what I built the bike for) but terrible on either side of a hill.
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Old 06-09-10, 07:05 PM
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46:17 is working pretty well for me

easy starts

keep a 20 mph+

can easily hit 30 mph

i love spinning.
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