I'm new to this forum but think I can help here. I used to have an 05 Yamaha FZ6 but traded that in for an 05 F4i. The F4i is better in everyway...except I miss the center stand the FZ6 had. In the UK the F4i is sold as the CBR600F and it comes with a center stand as standard equipment...Main Stand them Brits like to call it. Anyways, if you want one if won't be cheap because they have to ship it overseas. Go to www.hondaspares.com or email Lloyd at sales@hondapart.co.uk. He can sell you one for GBP 139.57...about US $265 before shipping costs. I was lucky and found one on eBay for US$75. Search for CBR600F main stand...you might get lucky too. Your F4i has the bolts for it already...though I hear the Cali models with the O2 sensor in the way might be a problem. For $265 though I think non spool stands will be cheaper...but they're bulky and you can't take 'em with ya! Hope this helps.