I have two issue with my navara safari. 1st the butterfly bars are to low, so I've purchased a stem riser which I think will bring the bars up to seat level. 2nd is the real question; I am thinking of purchasing an adjustable stem riser and reversing it towards me to bring the bars closer to me so that I'm not stretched out and putting pressure unduly on my hands. I need about 3 inches closer to me. Perhaps a 80 or 90 mm extension will do it. Is there an issue with reversing the stem extension? I will need to change the cables for sure! What is your experience with this issue and how did you solve it? I like the bars for the multiple hand positions so would like to keep them if at all possible.