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Box
Box One Oversized Single Speed Cog
Best for
race-focused BMX riders
Race class
Confirm by rider size
Fit checked before shipping · Mechanic support via WhatsApp · Authorized dealer sourcing
100% Secure Transaction
Live Stock
Inventory updated daily. Items in stock ship the next business day.
Fast Delivery
We use trusted couriers to make sure your order arrives safely and on time.
Secure Payments
100% secure transaction. We never share your information with third parties.
Satisfaction Guarantee
Every item is checked before shipment. Return within 10 business days if unsatisfied.
Preorder terms
Clear timing before you commit.
09 Sep 2026 target
Full payment or WhatsApp-assisted
Cancelable before supplier confirmation
~14 business days after order
Fit & geometry
Will this fit me?
Race class
Confirm by rider size
Rider height
Top tube
20"
Wheel size
Material
chromoly
Skill level
developing BMX racers
Setup context
Race-ready checks
Crank length
Gear ratio
Confirm chainring and cog setup
Brake type
Confirm brake standard
Pedal setup
Confirm included pedal/clipless preference
Track recommendation
Best for club racing and skill progression.
Next step
Still unsure?
Recommended upgrades
Complete the race setup
Gearing
Confirm chainring/cog ratio for your local track before checkout.
Contact points
Review pedals, grips, and saddle setup for gate-start confidence.
Protection
Pair the build with race helmet, gloves, and body protection.
Product info
About This Product
Optimize your power transfer with the Box One Oversized Single Speed Cog , engineered for elite- level performance and durability. CNC- machined from high- strength chromoly steel , this cog features a sleek ED black finish with laser- etched graphics for a premium look that lasts. Designed specifically for OS spline drivers — including the Onyx Ultra SS Driver — it’s compatible with both 3/ 32” and 1/ 8” chains , giving you flexibility across race setups. Available in 14T to 18T sizes, this cog delivers smooth, consistent engagement and efficient power output. Weighing as little as 20g ( 14T) , the Box One Oversized Single Speed Cog is the perfect upgrade for serious BMX racers demanding precision, strength, and performance. View Whitepaper: Box® - Stealth Hubs Whitepaper 06.12.25
+COMPLETE YOUR SETUP
THIS ITEM
Box One Oversized Single Speed Cog
COMBINED TOTAL
Rp 1.646.320
Preorder each separately via WhatsApp for bundle deals
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Box One Oversized Single Speed Cog
Rp 935.541