Price: $191.85 - $140.00
(as of Apr 13, 2025 09:27:34 UTC – Details)
Product Description
IS PRIME 9 SIMPLER?
Same Range with Fewer GearsEase of Set-UpWide CompatibilityLess MaintenanceDon’t Worry, All Bike Shops Are Familiar With 9 Speed Platforms! 
IS PRIME 9 MORE DURABLE?
Straighter Chain-lineUnique 9 Speed ChainSingle Shift Option (E-MTB)Fewer Gears (fewer shifts)Full Steel Cassette (all tiers)
DOES PRIME 9 PERFORM BETTER?
Shifting Less Means Faster RidingOptimized Shift RampsConsistent Gear JumpsLightweight Cassette 
This groupset includes 
Box Two Prime 9 Multi Shifter
Our Most Durable ShifterLightweight Hinged & Extruded ClampResponsive 2 Piece Pull LeverMTB Style Release Lever (V2) 
Box Two Prime 9 Derailleur
Our Most Durable DerailleurFor Aggressive TerrainTri-Pack Limited Slip ClutchSealed Bushings Pulleys 
Box Two Prime 9 Cassette
Our Most Durable CassetteSteel Stamped CogsLightweight Alloy SpidersUltra-Wide Ratio with Consistent Progression 
Box Two Prime 9 Chain
Our Most Durable ChainDurable Hardened Solid PinsIncludes Nickel Connecting LinkExtra Long for Long Wheel Base & Cargo Bikes
Prime 9 Groupset Comparison Chart
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Add to Cart
Add to Cart
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Customer Reviews
4.1 out of 5 stars 9
4.0 out of 5 stars 9
4.3 out of 5 stars 77
4.6 out of 5 stars 36
Price
$140.00$140.00
$147.70$147.70
$89.99$89.99
$134.45$134.45
Rating
Our Most Durable Groupset
Our Best Performing Groupset
Our Best All-Rounder Groupset
Our 8 is Enough Groupset
Terrain
For Aggressive Terrain
For Aggressive Terrain
For Light/Medium Terrain
For Light/Medium Terrain
Chainring Compatibility
Wide/Narrow
Wide/Narrow
Wide/Narrow
Wide/Narrow 8 Speed Specific
Hub Compatibility
Standard HG
Standard HG
Standard HG
Standard HG
Derailleur Clutch
Tri-Pack Limited Slip Clutch
Adjustable Tri-Pack Limited
Limited Slip Clutch
Limited Slip Clutch
Group Kit Box Two Prime 9 X-Wide/Multi Rd/Trigger-Shifter/Chain/Cass 11-50
Customers say
Customers find the groupset to be solid and reliable, with easy installation and great shifting performance. They also appreciate its reasonable price point.
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