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Box®
Box Four 8 Speed Shifter
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
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
The Box Four shifter's main features aren't strikingly different from Box Three's. The key difference is its 8-speed platform. We've chosen to modernize the 8-speed in much the same way we did the 9-speed for Prime 9. Just like the Prime 9, the Box Four shifters take advantage of the "less is more" theme and exploit durability, simplicity, and reliability. Available as a multi-shift (pull several gears at once) or single-shift shifter (a sound choice for e-bikes). SUPPORT MATERIAL Prime 9 Technology™ View Prime 9 Drivetrain Compatibility Manual How is the Ebike variant different? View Prime 9 Comparison Chart View Prime 9 E-Bike Comparison Chart Why Prime 9?
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THIS ITEM
Box Four 8 Speed Shifter
COMBINED TOTAL
Rp 12.755.286
Preorder each separately via WhatsApp for bundle deals
Box Four 8 Speed Shifter
Rp 404.047