State Bicycle Co. x Iozzio - 4/20 Shotgun Top Cap

Say hello to your new ride-or-die trail tool: the world’s first Integrated Bicycle Dugout Top Cap, engineered for those who know the journey is just as important as the pit stops along the way. Whether you’re riding deep into the backcountry or just posted up at the local trailhead, the Shotgun Top Cap ensures you’re always locked, loaded, and ready to spark some joy.

Machined from aircraft-grade aluminum, this top cap blends stealthy function with premium finish—bead-blasted and anodized for durability that looks as good as it performs. Featuring a spring-loaded ceramic one-hitter, stash-ready pack chamber (1.5g) with a gasket-sealed swivel lid, and a slick resin poker—everything's locked inside like a secret stash you can talk about.

Designed to replace your 1-1/8” threadless headset cap, the Shotgun integrates seamlessly with steel, aluminum, or carbon fiber steer tubes. And yes, it’ll survive your gnarliest descent—or just being passed around the campfire.

Specs & Materials:

• CNC’d Aluminum / Stainless Steel / Ceramic / Silicone

• Wrench Size: 32mm hex

• Outer Diameter: 23.5mm

• Length: 90mm

• Thread: M6x1 x 20.3mm

• Weight: 70.8g empty / 72.3g loaded

• Steerer Compatibility: 1-1/8” Threadless (Steel / Aluminum / Carbon)

Includes:

• Ceramic Spring-Loaded Bat

• Swivel-Lid Pack Chamber (1.5g capacity)

• Resin Poker

• Stainless Bolt

🔧 Install Instructions (PDF)