Every great beer deserves a memorable bottle cap, just like every great bike deserves a memorable top cap. The Spank x Rainier Stem Top Cap serves as a cold one's crown for your cockpit! This beauty channels the spirit of OG Rainier bottles. Grab one for every bike, buy extras for your riding buddies, and still have enough left over for a six-pack to share — because life's too short for warm beer and boring top caps!