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Box
Box One Oversized 20mm Cassette Spacer Kit
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
Check geometry/spec table before ordering
Wheel size
Material
aluminum
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
Upgrade your drivetrain with the Box One Oversized 20mm Cassette Spacer Kit , designed for precise chainline adjustments and optimal performance. This kit includes adjustable spacers ranging from 2mm to 6mm , allowing you to fine- tune your cassette spacing to perfection. Made from 6061- T6 aluminum and CNC- machined for strength and precision, these spacers are extremely lightweight , with a total weight of only 3g . The anodized finish ensures long- lasting durability while maintaining a sleek, professional look. The kit includes three 2mm spacers , giving you the flexibility to adjust your cassette setup to your exact needs. Compatible with OS spline drivers , the Box One Oversized 20mm Cassette Spacer Kit is the ideal solution for BMX racers looking to optimize their drivetrain performance with minimal weight. View Whitepaper: Box® - Stealth Hubs Whitepaper 06.12.25
+COMPLETE YOUR SETUP
THIS ITEM
Box One Oversized 20mm Cassette Spacer Kit
COMBINED TOTAL
Rp 1.084.883
Preorder each separately via WhatsApp for bundle deals
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Box One Oversized 20mm Cassette Spacer Kit
Rp 374.104