Very few riders need to worry about a weight difference of a pound or two. Most riders (including me) could lose a couple pounds and have the same effect as a lighter bike. Focus on the fit of the bike, riding position and your intended use for the bike (roads versus trails). And then enjoy the ride.

If 'speed' is important the FX 7.5 is the better choice. Suspended forks are nice for comfort, but are slower because of weight and lost energy in compression of the suspension.

Additionally, you can do what I've done, get a collection of 6 bikes so you have a bike to go with the mood of the day.
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