Hi Tahoe,
As a VERY Plus size rider myself who has just started riding for the first time in over 20 years a couple months ago at 270+ pounds, if I can do it, YOU can do it. I lost 80 pounds a bit over a year ago and this summer I started walking but best of all, I started riding. I don't have any fancy clothes (yet, I'm in the process of sewing my own pants and soon jersey) I have now ridden 545 miles and I haven't lost new weight (YET) this summer, but I have lost INCHES!!

Good luck, put one pedal in front of the other and ride like the wind!

http://www.picturetrail.com/mary9761