jerstilly, there are 4 postions the rear spring can be set at. If you look at your clutch guard on top, it will show you which setting to set the numbers at. I use #2 or #3 depending upon the type of riding I will be doing. If you are drag racing, go to the softest position. Belleville MXZ, There are two rubber blocks on your rear skid, that are between the coupler blocks. The rear, towards your mud flap/ snowflap, are the ones I am talking about. If you look at the rubber stops closely, there is a seam about halfway on the block, that has a mold mark on it. I take the rubber stoppers off, and cut them with a hacksaw at the seam, then I put them back on. This takes off about 1/2" to 3/8" off the rubber stopper. This allows the coupling block to go further back and give you more weight transfer.