Hello. I need to upgrade the rear suspension on my 2012 RGU. It rides like a tank no matter what air pressure I have the air shocks set for. Looking at progressive or Ohlins maybe. I do alot of 2up riding. I'm around 235 lbs, my wife around 170 lbs. (She's tall not fat. lol) As I'd like to keep the ride height factory, what is the stock rear shock length? Thanks for any help with this.