To provide a reverse gear capable of improving strength reliability by integrating an outer circumference annular gear body and an inner periphery boss body, increasing a chamfer designing flexibility by forming clutch inner teeth by forging, and improving shift feeling, wherein not only the clutch inner teeth but also transmission outer teeth are formed by forging, and gear strength is improved by leaving a fiber organ referred to as a fiber flow in a tooth profile by forging by omitting mechanical processing.

The reverse gear is constructed such that from the inside to the outer circumferential side, a shaft hole, a boss, a recessed groove, inner teeth, and outer teeth are integrally formed on the same axis, while inner teeth are formed on the outer circumferential wall of the recessed groove by cold forging, the inner teeth are tapered, and a chamfer is formed at a tip.