That steering "feel" has more to do with front end geometry than actual weight. Another thing worth noting is that the "lighter feel" is accompanied with a higher propensity to "head shake", therefore the need for steering dampers. A couple of other things that add to the heavy feel are wider tires and tires that are worn more in the center than the edges as is usually encountered on street bikes, especially with a lot of interstate riding or straight road riding. In that case, new tires will make the bike feel lighter again. In the REAL tight stuff the lighter feel would be nice, but for most of my riding I don't mind the heavier feel with virtually no chance of a headshake.
Keeping the "Hap" in "Happy Holidays"!
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