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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
437 in ID - 0
2A/5 - Double Layer - Nomex - Black / Gray - Medium - Each
06 in Thick - Aluminum / Rubber - GM LS-Series - Pair
3/5 - Suede Outer - Fire Retardant Cotton Inner - Black - Size 12
APE KZ MAIN BEARING SUPPORT CAP Hayabusa Brakes 437 in ID - 0Heat treated chrome moly main bearing studs (case studs) are necessary to prevent the cases from moving around under power in high output engines. These high strength studs help to prevent crankshaft damage. Made from the same special chrome moly that we use in our cylinder studs. All threads are rolled after heat treat for maximum strength. All sets come with special flanged nuts and instructions.
