Join Date: Feb 2009
Location: Deep in the heart of Texas
Bikes: Presto NJS build, Specialized Allez Pro w/ full Dura Ace and Ksyrium SLs, 1990something Specialized Sirrus
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not noticeably, no. You're not going to be able to tell much of a difference. Maybe weight, but as you said the weight difference is pretty minor. Why do you think there is going to be a huge difference? open pros are great rims, don't get me wrong, but you are putting them on formula hubs and a steel bike. if you were on a light CF bike, then yeah, you might notice the weight difference. If you want faster, replace the tires on the SJ. Get some 23c slicks and pump them up to a high psi.
Last edited by PedallingATX; 06-04-09 at 02:44 PM.