Quote:
Originally posted by trx250r180
question on suspention cycle,i had a set of epic +3 arms making my 450r 50 inch wide with 4+1 rims ,when i would push up and down on front bumper of quad tires would slide about 1/2 to 3/4 inch sise to side on garage floor ,i recently put laeger +2 a-arms on to make 48 wide so id fit in woods a little better when trail ride ,i noticed when i cycle the +2 laeger arms the tires stay in contact with the floor throughout the cycle without sliding,is it the added width making them slide through the travel or desighn of a-arms?i noticed the +2 arms i was able to square off inside corners faster without front end push like i had before ,i have to use a little more body english to take a 4th gear sweeper corner being narrower but my laptimes seemed to increase being narrower ,and had less rider fatique also
Good questions and good observations on your part. This is really tough for me to say not seeing it in person. It could be a number of things contributing though. First question for you, were the epic arms by any chance +1 forward, I've noticed this has quite a negative effect on the handling of the R's. This would definitely cause the "pushing" in corners as you described. This could also be from poor castor setup. Whether the arms are adjustable or not for this I'm not sure. As far as the movement of your wheels, good observation. This happens on all atv arms. What I find odd however is that your longer arms moved more. This should be quite the opposite actually. The shorter the physical length of the arms, the more they have to travel up and down to get the wheel to move a set distance. Longer arms have to move vertically less to get the wheel to move the same distance, as the wheel is further from the frame. 1 inch is almost negligible however. Another question are you using the 4:1 wheels still? I'm assuming you are. Now I really cant say for sure as I don't know the design intent of the epic arms, but there could be a few different things going on here. First, nonparallel arms could cause this. Using nonparallel arms can be used to an advantage to gain camber as your wheels cycle through their motions. Using unequal length arms could also cause this. (Please don't confuse my term "unequal length" arms, as I've yet to see an ATV that used the same length top and bottom, it just means that one arm is not cycling as much as the other arm. Adjusting Camber could cause this too, as you are effectively taking length or adding length to the upper arm by doing so. It is possible your new arms are non adjustable or adjusted so that the arms are "parallel" and "equal length" Meaning they are following the exact same cycle pattern, they remain parallel throughout the entire cycle of the suspension.