Join Date: Jul 2007
Location: San Jose, Ca
Bikes: 09 Specialized Tricross Sport
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rim width effect on ride quality
I couldn't find any posts on this in particular.
My Tricross Sport came with Alex rims with a 17mm internal width and I've been wondering if the wider rim doesn't allow my 700x32 Specialized Borough Sport tires' sidewalls to bulge as much as a narrower rim would, thereby reducing the "spring" effect of the tire's sidewalls.
Would going to a 15mm internal width rim give me noticeably better ride quality?
I would be going from a 622x17 32-spoke 3-cross wheel to a 622x15 32-spoke 3-cross wheel.
I'm also thinking about more permanently using 700x28 Conti Gatorskins on pavement.
Would the 17mm rims give a harsher ride then 15mm rims when used with 700x28 Gatorskins?
Here's a cut & paste spec of my wheelset & tires:
Alex ACE-19 double wall rim, CNC sidewalls, spoke eyelets, 32h
Specialized forged alloy, 32h, sealed bearings, QR
Specialized forged alloy, 32h, sealed ball bearings, cassette, QR
Specialized Borough Pro CX, 700x32c, aramid bead, 120TPI
Specialized Borough Sport CX, 700x32c, wire bead, 60TPI
I'm running the 120TPI tire on the front because I got 2-3 flats with it when I ran it on the rear. So far only 1 flat with it on the front. This tire's puncture resistance is lousy.