Box Three P9 E-Bike Groupset
Best reliable shifting for demanding e bike riders.
Upgrade your older bike with a modern 1x drivetrain. This groupset features an e-bike optimized cassette and a clutch derailleur for reliable chain management. The single-shift action provides a focused riding experience, making it a practical choice for bringing your bike up to date.
$214.99
at
Scheller's Fitness & Cycling
Who it's for
- E-bike owners prioritizing component durability and maintenance
- Riders seeking dependable performance under electric motor assistance
- E-bike adventurers exploring varied landscapes and gradients
Who should skip it
- Experienced cyclists desiring quick, responsive gear adjustments
- Cadence-sensitive riders who prefer finer gear increments
- Weight-conscious riders prioritizing a lighter e-bike setup
Performance breakdown
Drivetrain Simplicity
Streamlines complex multi-chainring setups into a clean, intuitive single-ring system.
E-Bike Durability
Robust construction handles the higher torque loads of electric motor assistance.
Chain Retention
Limited Slip clutch keeps the chain secure over rough, technical terrain.
Shifting Precision
Single-shift action offers deliberate, focused gear changes rather than rapid-fire speed.
Gear Range
The 12-50T cassette provides ample climbing leverage for steep, challenging ascents.
Installation Ease
Straightforward design makes upgrading older bikes a manageable weekend project.
Key Specs
Cassette
12-50T E-bike Optimized
Chain
126 Links
Shifter
Box Three Prime 9 Single Shift
Rear Derailleur
Box Three Prime 9 X-Wide with Limited Slip clutch
Intended Use
E-bike
Know before you buy
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