As our velocipedestrienne friend above could tell you, riding a bike can be a very dangerous thing. It would be far better to just put your bike on the train and take the train. And faster. You might still need to ride your bike somewhere after you get off the train, because FrontRunner doesn't quite go everywhere, but you wouldn't mind, because FrontRunner has a car with nice places to park your bike. You don't have to hold it the whole time, hoping against hope that the train won't have to brake suddenly, which would send you toppling over your bike. Instead it will just send you toppling out of your seat, which is still not as bad as toppling over your bike.
Even if you don't have a bad attitude about life and knock people over with your velocipede, you might still be riding a bike while you desperately need to check your email for something and go to the bathroom really bad. You'd sure be glad to see that FrontRunner train pulling up.