This is a pack of two optional Mugen Steel Kingpin Ball Adjusting Nuts. These nuts are heavier than the stock parts, and eliminate the need for arm weights. They will help to improve the steering and handling in bumpy and low traction conditions. When all four adjusting nuts are replaced, these will add 13.8 grams of weight to the front suspension.
This product was added to our catalog on September 27, 2013