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SSCX/commuter "hybrid" gear ratio?

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SSCX/commuter "hybrid" gear ratio?

Old 12-22-11, 09:58 PM
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SSCX/commuter "hybrid" gear ratio?

Trying to find out if a gear inch of:

Chainring: 46|42

Cog Size: 18|18

Gear Inches : 68.94|62.95

Gear Ratio: 2:56|2:33

is insane for commuting/racing (nothing fancy racing)

Chainring I am not sure I want to mess with too much, but I assume I can step down heavily and go with a smaller gear ratio (but 42t is the cap on my crank)

I am cross posting this to the CX forums as well.
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Old 12-23-11, 10:23 AM
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It is kind of like asking us if a size 7 or 10 shoe will fit on your brother's sister's second cousin's best friend's daughter.

It all depends on the terrain and your level of fitness.
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Old 12-23-11, 10:37 AM
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Why not put a Surly Dingle cog on the hub. Have a 46-17 and a 42-19. That would give you a 71gi (46-17) and a 58gi(42-19) with no crosschaining. If your dropout is long enough, you could crosschain to get the 46-19 and maybe the 42-17. Since you have a 4 tooth difference up front, using a 2 tooth difference on the Dingle would mean the rear wheel would move in the dropout as you changed gears. If you used the 17-21, the rear wheel would stay in the same place as you changed gears. A 42-21 would be nice and low at 53 gear inches.

I have no idea if these ratios would be suitable for cyclocross racing. Certainly fine for just messing around and perfectly fine for your commuting.

https://surlybikes.com/parts/dingle_cog



Last edited by bbattle; 12-23-11 at 10:43 AM.
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Old 12-23-11, 01:29 PM
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i just spin like crazy on the race gearing for commuting. i think i'm 36/17 right now which is low for most races but good for mud.

yes, i top out on straights. no, it's not worth it for me to get a dingle. they're sweet but i have other bikes for going fast.
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