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

Based on 7 reviews
71%
(5)
14%
(1)
0%
(0)
0%
(0)
14%
(1)
B
Bike Slapper (Sarasota, US)
WTF

Duuuuuuude! ❤️

B
Brian Sherry (Allentown, US)
4/20 Shotgun Top Cap

I mean - who could say no?

N
Niagara716 (Buffalo, US)
420!

Effin A! 🤠

T
Tate Harris (Lawton, US)
Broke during install

This is an awesome idea but the install directions led me to breaking the top. I did the rubber mallet method and it seems that the threads for the small bolt on top have broken from the force of the mallet pretty’s significantly and as a result the top won’t tighten all the way. Also within a few week the spring bounced out of it.

Thanks for the honest feedback—and sorry for the hassle. This shouldn’t have happened.

Please email info@statebicycle.com with your order details and shipping address, and we’ll send you a free replacement right away.

Appreciate you giving the Iozzio Top Cap a try—we’ll make it right.

P
Phil Smith (Antioch, US)
Shotgun fun I

Love this tool should come standard on everyone ever

S
Sake2Me (Saint Augustine, US)
Exactly what you’d expect

Install took 5 minutes using a bolt, hammer and wrench. Awesome feature to add to the bike. Don’t hesitate! Medicate!

T
Trevor

Had to buy a new washer, the og one wasnt creating enough tension

State Bicycle Co. x Iozzio - 4/20 Shotgun Top Cap
Ride in the clouds

Must be 21 years or older to purchase. This product is intended for legal herb and tobacco use only.
7399944192087
Regular price, $55.00

or
Pay Per Month

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)


RETURNS & EXCHANGES:
You have 30 days from receiving your order to request a return or exchange. Return shipping fees may apply. Some items are final sale / non-returnable.
Add the Package Protection Plan at checkout for free return labels, free exchanges, extended 60-day window, and coverage for loss/theft/damage in transit.
View full Return Policy .

SHIPPING:
Most in-stock items ship within 1 business day. You’ll receive tracking as soon as it goes out.
Learn more: Shipping Policy.

ASSEMBLY:
Complete bikes ship ~90% assembled, but final setup and tuning should be done by a professional mechanic. This keeps you safe and helps validate your warranty.
WARRANTY: Warranty activates when you submit proof of professional assembly.

  • 5-year warranty on all bicycle frames
  • 1-year warranty on non-consumable parts
  • 2-year warranty on Essor USA products

Details: Warranty Policy.

SIZE CHARTS & SPECS:
Need fit or tech info? Find detailed geometry charts, size guides, and build specs here:
Size Charts & Specs.

SUPPORT:
Have a question or an issue with your order (damaged in shipping, missing items, etc.)?
Reach out and our team will take care of you:
Contact Us or email info@statebicycle.com.

Customer Reviews

Based on 7 reviews
71%
(5)
14%
(1)
0%
(0)
0%
(0)
14%
(1)
B
Bike Slapper (Sarasota, US)
WTF

Duuuuuuude! ❤️

B
Brian Sherry (Allentown, US)
4/20 Shotgun Top Cap

I mean - who could say no?

N
Niagara716 (Buffalo, US)
420!

Effin A! 🤠

T
Tate Harris (Lawton, US)
Broke during install

This is an awesome idea but the install directions led me to breaking the top. I did the rubber mallet method and it seems that the threads for the small bolt on top have broken from the force of the mallet pretty’s significantly and as a result the top won’t tighten all the way. Also within a few week the spring bounced out of it.

Thanks for the honest feedback—and sorry for the hassle. This shouldn’t have happened.

Please email info@statebicycle.com with your order details and shipping address, and we’ll send you a free replacement right away.

Appreciate you giving the Iozzio Top Cap a try—we’ll make it right.

P
Phil Smith (Antioch, US)
Shotgun fun I

Love this tool should come standard on everyone ever

S
Sake2Me (Saint Augustine, US)
Exactly what you’d expect

Install took 5 minutes using a bolt, hammer and wrench. Awesome feature to add to the bike. Don’t hesitate! Medicate!

T
Trevor

Had to buy a new washer, the og one wasnt creating enough tension