Need a rack for use with a 2010 VW Jetta, Class 1 hitch mount. Trying to keep weight down, the Sherpa looks perfect but it says it can only handle a 44.5" wheelbase. My 2012 Stumpjumper FSR 29er has a 46.5" wheelbase.

I've seen reviews that show that other 29er FS bikes fit the Sherpa just fine. Can anyone help me? I don't want to spend $430 to find out my Stumpy won't fit the rack.