I bought a TT 3.3 on eBay today. I doesn't have a rear rack or fenders. I called WizWheelz, and they confirmed that the fenders will work on hte 3.3, but I forgot to ask about a rack. WW sells a rack for $65, but I was wondering if a standard rack (cheaper) would work. I'm going to use the trike primarily for commuting, and I already have some panniers that I used on my Raptor-25 (also 20" all-around).