2/25/22 UPDATE: out of stock. Please email for availability. Estimated ETA is beginning of March. Please only order if you would like to be added to our pre-order list. We recommend doing so as these sell out quickly. Sorry for the inconvenience.
EDR Performance main bearing and crankcase stud, bolt kit for the 2015+ R1/R1M/R1S contains 59 pcs.
Some stud kits may take up to a couple of weeks to ship please allow for assembly and available inventory.
(10 x M9 HD studs, 10 x 9mm high strength 12 point nuts, 10 x HD case hardened washers, 2 x M8 countershaft bolts and washers. 8 x M8 HD counterbalancer bolts with washers, 8 x oem o-rings for counterbalancer bolts. .5oz of ARP bolt thread lube) minimum tensile strength 1500N/mm²
This HD Crankcase stud and bolt is heat treated 8740 Chrome moly with J-formed threads rolled, not cut!The HD main studs and bolt kits help prevent cases from moving around under power from high rpm and horsepower levels. This high strength kit can greatly help to prevent crankshaft damage.
Kit comes complete with studs, bolts, washers, nuts, o-rings as needed. Also included are detailed instructions along with ARP recommended thread lubricant as needed. Installation is as easy as the OEM fasteners. These studs and bolts are reusable for multiple rebuilds, unlike the oem fasteners.