Have a 2013 Recon ES, have owned since new. At some point shifting into reverse became very difficult, in a mechanical sense. After pushing the red R button, I needed to pull very hard on the brake lever in order for the electric downshift to click into reverse. Eventually it stopped working, but I was able to get it working again by twisting one of the wingnuts quite a few times on the back of the atv, tensioning one of the lines. I believe it ended up tightening the left brake really excessively though. However, at that point the reverse shifting actually worked again, but the brake was far too tight and not effective, so couldn't keep it that way. Does this given anyone any sense of what could be the issue?