Originally Posted by
Marc_Diebold
... Also, the tires on the Sport 6 appear to be gravel tires, and they're larger - 700x40 vs. 700x32 with the 7.4 FX. I assume that also equates to a slower top speed.
The 700x40 tires will be heavier and slower than the 700x32 tires.
The 40's might be ideal if you will ride on rough surfaces - but the 32's (or similar) will be faster on roads, most paved trails, -
and similar.
As mentioned in a prev post - you can swap to 32's. And 35's might be a good compromise size - or 38's.
I've spent a fair amount of time on 32, 35, and larger sizes on a similar bike. Found the 32's to be a tad small for some of our riding - so switched to 35's. ( Panaracer Gravelking SS 35 actually measured a bit over 36mm mounted - so the switch was ideal ),
In addition to reducing tire weight by switching from the 40mm to 32 or 35 - you can also use smaller tubes for additional weight savings. ( The common tube size step up is @ 38mm ; you can use the smaller / lighter tubes up to 35mm tire size before the larger size tubes are recommended for tire sizes 38mm and above ).
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