[ejis]

If you have the money for a custom suspension to lower the XB, you can afford to park it for a while and buy a much better learner bike. Better to get one of those, learn to ride on it, not worry so much about dropping it, and then get the XB back out when you're ready. When you're finished with the learner bike, sell it for what you bought it for.

Or you can just take a bunch of air out of the tires to lower the whole thing. Make sure you do both front and rear though, otherwise it'll handle funny.