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State Bicycle Co. x Iozzio - 4/20 Shotgun Top Cap
Ride in the clouds
current price, £34.00
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:
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CNC’d Aluminum / Stainless Steel / Ceramic / Silicone
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Wrench Size: 32mm hex
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Outer Diameter: 23.5mm
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Length: 90mm
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Thread: M6x1 x 20.3mm
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Weight: 70.8g empty / 72.3g loaded
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Steerer Compatibility: 1-1/8” Threadless (Steel / Aluminum / Carbon)
Includes:
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Ceramic Spring-Loaded Bat
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Swivel-Lid Pack Chamber (1.5g capacity)
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Resin Poker
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Stainless Bolt
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.










