Hi, I am 5 foot, with short legs and ride a 2007 Ninja. My husband put on the lowering links from Soupy's.
http://www.soupysperformance.com/cat...00/5405407.htm
This kit lets you lower the bike up to 4 inches.
If you lower the bike more than an inch you will want to adjust the front bars to compensate. Soupy's also sells that kit:
http://www.soupysperformance.com/cat...00/5527850.htm
This made a big difference to me, allowing the balls of my feet to touch when I come to a stop.