This full suspension linkage is designed with a more linear dampening curve to improve comfort on acceleration chop, keep the rear more planted in braking bumps and reduce the loose feeling of the OEM linkage. The stock linkage isn't bad when you have nothing to compare it to so we are confident you feel a noticeable improvement. To control bottoming it must be used in conjunction with a one rate stiffer shock spring. For example if your recommended spring is 54NM ( 5.5KGM) you use a 56NM (5.7KGM). Faster or heavier riders may want to go up 1.5 rates (for example from stock 5.5KGM to a 5.8KGM). NOTES: Ride height is the same as stock. We recommend 100mm of sag. Will NOT work with KX-LKA39-GN orKX-LKA39-BA.