Eagle BBM RB 4340 Forged Crank 4.375 Stroke Arc Lighting all-weather performance and legendary reliability

all-weather performance and legendary reliability set the industry standard

Eagle never compromises quality for the sake of a lower price

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Eagle BBM RB 4340 Forged Crank 4.375 Stroke Arc Lighting all-weather performance and legendary reliabilityEagle forged 4340 steel cranks feature a non twist forging, . 125" fillet radiuses for superior strength so chamfered narrowed bearings required, nitrided surface, &amp micropolished to &lt 2 ra. Intended for the most demanding applicationForged AISI ASME certified 4340 steel with multi stage heat treatment for superior strength Service: Eagle connecting rods and cranks are designed and manufactured to our specifications. Some simply purchase generic