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badass
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383 Posts
Discussion Starter · #1 ·
I'm 179cm, riding a 575 ETT compact road frame with 100 mm stem. I'm choosing a CX bike from two sizes: 55cm/ETT 550 mm and 58cm/ ETT 571mm. People keep telling me that a 58cm frame is too large for me for CX. I've never ridden a cx bike and there is no possibility to have any test ride.
 

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are you purchasing on line? that why you can't test ride? I'm horrible with frame geometry, but in the perfect world you'd want to get test ride on the bike you want or something similar to make sure the fit is right.

sorry not much help there.
 

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badass
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383 Posts
Discussion Starter · #3 ·
A proper test ride is a ride on a trail and road. I can't do that. I can only choose from two sizes. I'm really not sure about ETT 550mm, I don't want to run a stem longer than 100mm.
 

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Do not touch the trim.
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dot said:
I'm 179cm, riding a 575 ETT compact road frame with 100 mm stem. I'm choosing a CX bike from two sizes: 55cm/ETT 550 mm and 58cm/ ETT 571mm. People keep telling me that a 58cm frame is too large for me for CX. I've never ridden a cx bike and there is no possibility to have any test ride.
Your road bike fit points to some oddness about your body morphology or just poor fit as at your height a 100mm stem is too short. It looks like you should really be on a 56TT with a 110or 120 stem on the road bike so I'd imagine the 55cm TT bike wwith a 110 stem would be ballpark if you can get the stem high enough without a crapload of spacers.
 
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