Old 03-22-17, 01:17 PM
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chas58
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Originally Posted by johngwheeler

Given the same tire width & pressure, how much difference in handling and actual speed would I be likely to notice?

If I chose to get a complete wheel set, are there any recommendations that would be compatible with the current Giant PX-2 rims on my bike? (The group set is SRAM Rival 1 (11-speed, 11-32 cassette).

Thanks!

John
Speed:
You are talking maybe a 50% increase in rolling resistance, max. Something like 10-20 watts for two tires with 120 watt input power, so that could be well over 10%. Schwalbe does tend to make very efficient tires (even with knobs).

Handling:
With knobbies, I notice that my cornering on the street (at say 20+ mph) is a lot more cautious because the knobbies don't grip the road like a slick.

Stick with the schwalbe's if you like. The G-one isn't going to hold you back much on the road and can be a good complement to the X-one , and of course you could go with their slick version...
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