this explains exactly what im talking about. on my friends bike...
from another thread..........
ont waste your money on a extension plate. If you go plus 2" you will loose some handling on the tighter trails. However, if your riding desert or dunes you will have more stability on the rythem sections, hole shots and jumping. If your swing arm is not damaged and you are looking for less expencive way for better handling on the trails and jumping, I reccomend you replace the rear shock. Or send you stock shock in and have it re-valved, lengthen the stroke and replace the spring. Also if you move the lower mounting bolt for the shock on the swing arm foward 1 and 1/2" towards the engine you will get more swing arm travel. Its easy to do. Remove the arm relay off the swing arm. Put it in a vice, measure 1 and 1/2" foward of the stock location of shock mounting hole center, drill your new hole for the shock mount. It should be 1 and 1/2 " center to center from new hole to old hole. If you have access to a drill press use it, but not critical to use. If you dont feel comfortable drilling it your self, measure and mark the spot for new hole and take to local machine shop and have them drill it. I have done this to my banshee. I also had my stock shock re-worked and replaced the stock spring with a eboch spring. I have 11 and 3/4" rear wheel travel. Its in-expencive and works great. I have learned this trick from Dean Sundahl. He has been racing Banshee's in Baja for over a decade. He has won King of the dessert 11 years in a row, several Baja 1000's 500's, and 250's. When it comes to Banshee's he is the man!!!!!!! [big Grin]