Have you set the sag on your suspension? It shouldn't bottom crossing train tracks.
There are tons of great roads where I live, but we're not without our share of extremely rough ones either.
Your bike with the suspension set for your weight will be a night and day improvement over what you apparently have now.
Setting sag is simple, you need a metric tape measure, rear stand, front forklift stand, a 3' long 5/8" diameter steel rod(to pass through the engine mount bolt in the frame to support the bike on stands), a pair of car jackstands, a small flat blade screwdriver, a socket to fit the preload adjusters on top of the forks(14mm I think), and a long punch and hammer if you don't have the spanner wrenches for the rear spring.
Setting sag will make your bike much more stable in turns, as well as keep the suspension from bottoming or beating you up. If you don't have what you need to do it maybe an org member close by does. If you need to pay a shop, YOU or someone of equal weight of you in your gear needs to be sitting on the bike for measurements.
If none of this is possible you need to adjust your rebound/compression/preload by yourself. Hold the front brake and push down hard and fast on the front end while stting on the bike. As soon as the forks want to come back up, let off any pressure and let them come up on there own. They should rebound quickly and imediatley stop at the top of the stroke, if they are slow or have a sloppy double bounce or sag back down when they reach the top, then they deffinately need adjusting.
The same holds true for the rear. Just have someone hold the bars and balance the bike upright while you push down on the rear seat to bounce the rear.
I'm no suspension guru, as it is truly an art to correctly and perfectly set up a track bike for the rider. But a basic sag setup is a must for a good riding street bike. 30mm to 35mm of sag for a trackbike, and 35mm to 40mm for a streetbike is a good ballpark range to get a good ride. Don't be intimidated by it either, as you will see if you do it, sag setup is very simple. It's also the greatest improvement to any bike with adjustable suspension you can do.
There are several threads here that will walk you through it, and TufBusa has been a great help explaining the basics to me.
I hope you can give it a try.
