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PostPosted: Mon Jun 29, 2015 1:23 am 
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Joined: Wed Jun 24, 2015 8:11 am
Posts: 7
I suppose these are the so called open mold rims? what will happen if I have a 23 mm front rim and 25 mm rear rim, and I put 23 mm and 25 mm tires on the front and rear? will the tires still be the same 23 mm and 25 mm, or will the wider walls allow the tires to expand farther?


also, does it make more sense to have 50 mm rim or 38 mm rim in the rear? the 50 mm rim is stronger, more aerodynamic, and has only a slight weight penalty. the 38 rim in the rear is slightly lighter, the aero dynamic advantage is not nearly as important in the rear as in the front. So help me decide which one makes more sense for training and/or racing.

Thanks


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PostPosted: Mon Jun 29, 2015 6:41 pm 
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Joined: Wed Jul 23, 2014 6:16 pm
Posts: 26
Riders often mix wheel depths, though I can't think of a reason to use a shallower rear wheel. A deeper rear wheel works because cross wind has a much smaller effect on the rear wheel than on the front.


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Posted: Mon Jun 29, 2015 6:41 pm 


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PostPosted: Mon Jun 29, 2015 7:48 pm 
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Joined: Wed Jan 22, 2014 11:48 am
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Actually it makes more sense to have a deeper front wheels since its effects on air resistance is much larger than in the rear.

Looks a bit strange though. I'd take same width and depth front and rear, and use a narrower tire up front. That's actually what I'm running now on my fast bike.

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