The Box One cassette brings together all the virtues of the Prime 9 philosophy and distills them into what we feel is our most defining product to date. A unique machined all-steel unibody lattice and alloy support disc have netted us a high-performing, simple, durable and lightweight cassette. We could have exploited a sub 300g weight with an alloy cog but chose to stay true to our value proposition.
	
• Our Best Performing Cassette
	
• Steel Lightweight Unibody Construction
	
• Lightweight Alloy Internal Support Disc
	
• Ultra-Wide Ratio with Consistent Progression
	
• Durable Dual-Coating DLC & Nickel Protection
	
• Standard Freehub Body (HG)
	
• Prime 9 Technology™
	
• Not Intended for E-Bike Use
 
SPECIFICATIONS
	
		
		
		
			
Material
			
Acetal, 7075-T6 Aluminum, Chromoly Steel
		
		
			
Gears
			
11 - 13 - 15 - 18 - 22 - 28 - 34 - 42 - 50
		
		
			
Weight
			
365g /12.8oz