Must use with 6 speed transmission only. Speedo mount hole not machined on case. These transmission cases are designed to be one of the strongest on the market with extra case thickness and full support gussets where needed. Castings in CNC machined permanent molds from A356 Aluminum and hardened to T6 specifications, then fully machined on state-of-the-art Mazak FH horizontal machining center.Includes Case, complete with main bearing & retaining ring, countershaft bearing, shift shaft bushing and all alignment pins. If you need something that you don't see listed just ask. This applies only to orders in the continental U. Serious injury, death, and property damage can result from the improper use, control, alteration, or maintenance of motorcycles. The dealer and dealers' customers must exercise good judgment in the use, control, alteration, part selection and installation, and maintenance, of motorcycles. Jireh has no control over the judgment of others and assumes no responsibility or liability of any nature for the failure of others to use good judgment.