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Box
Box One Oversized Single Speed Cog
Best for
race-focused BMX riders
Race class
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Product Details
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Fit & Geometry
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Availability
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Before Ordering
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Preorder terms
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Confirm before ordering
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Fit & geometry
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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 1.666.952
Preorder each separately via WhatsApp for bundle deals
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Box One Oversized Single Speed Cog
Rp 947.265
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