Gearing ratio help

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6/2/2008 5:06 AM

I want to run a smaller sprocket cause right now I am running 39/14. How much smaller can I go without changing the freewheel, or is that going to be inevitable? Secondly, my crank arms are 175mm. I'm 6' 3 and I read some were that at my height I should run 180mm. What would the difference from a 170, 175, or 180 be? Some help here would be great. Thanks.

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6/2/2008 5:11 AM

You can go down to 36 with a 14 tooth freewheel.

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I awarded myself infinite cool points. Breaking the rules has never been this cool... EVER! Forever.

6/2/2008 5:16 AM

yea juss go down to 12 in the back and 32 or 33 in front thats wat i use to have u can see on my pictures and yea i would get som 180mm cranks u can probably find some profiles for cheap on ebay

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6/2/2008 5:30 AM

My concern with running 180's is that I wear a size 15 shoe and I am afraid I may not have enough foot clearence from my rear peg.

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6/2/2008 5:42 AM

If your bike feels good to you that's all that matters. I'm 6 foot and I'm still on a frame with a 20 inch top tube. People say I should get 20.5-20.7 but I'm more comfortable on a shorter frame.

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I awarded myself infinite cool points. Breaking the rules has never been this cool... EVER! Forever.

6/2/2008 9:54 AM

if ur gonna buy a new freewheel and a new sprocket just buy a 22-8 or a 25-9 since u want a smaller one but if u use the same freewheel you can only use a 38 i think so just buy a new freewheel

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6/2/2008 11:34 AM

i ride 36/13 seems pretty good

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¡Odio patinadores!

6/2/2008 11:36 AM

get a 25/9

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go ride a bike

6/2/2008 1:04 PM
Edited Date/Time: 6/2/2008 1:09 PM

do you have a flip flop hub that goes 14 on one side and 13 on the other, if so 36/13 will give you almost the same exact quickness but 33/13 will be real quick only you won't be able to go fast. You should probably just deal with what you got until you get money to get a new rear wheel. Any money you spend on just a sprocket could be used to get the new wheel man... I spent 50 bucks on a 36 when I still had my flip flop hub. Now I got a 50 dollar sprocket just sitting around and nobody wants it, but it makes a good back up when matched up with my old rear wheel in case of any problems with my new wheel you know, but I would rather have the 50 bucks back towards pedals and maybe even more!

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