27-09-2006, 08:24pm
Putting brands and staunch loyalties aside,even if a 4 into 1 didn,t make any horsepower more they all are significantly lighter and most noticeably improve the flickability of the bike.Thats a simple fact of physics that makes the bike easier to ride with less effort to change direction.So regardless of brands, exhaust note and pricing, the simple reduction in inertia has to be a good improvement in the riding experience worth considering. <i></i>