Box One Prime 9 Review

The box one prime 9 rear derailleur takes the advantages of legacy 9 speed drive trains but adds the advancements of modern 1 by drive trains.

Box one prime 9 review. A fully adjustable tri pack clutch forged construction and optimization for an 11 50t cassette steps up the durability and performance to an unparalleled level suited for the most demanding terrain. Box two in red prime 9 is aluminum and costs a mere 270. Prime 9 cassette box s one prime 9 cassette sports an 11 50t range and is manufactured from 7075 t6 aluminum and chromoly steel. All three offer an 11 50t cassette designed to work on a standard hg hub driver the most prevalent freehub body in the industry.

Ranging from box four to box one there is a range of price points and specifications available. A complete box one prime 9 groupset with its light carbon goodness will set you back 627. Most readers are familiar with 12 speed drivetrains from shimano and sram so for much of this review i ll be comparing the box prime 9 group to sram nx eagle which shares many similar attributes. Take it one stop lower to box 4 and it is just 155 but with a smaller gearing range.

We could have exploited a sub 300g weight with an alloy cog but chose to stay true to our value. Jack luke immediate media. Clearly riders can benefit from a wide range of gears and the x wide prime 9 group delivers a 454 range. A unique machined all steel unibody lattice and alloy support disc have netted us a high performing simple durable and lightweight cassette.

Just announced for 2020 is the new prime 9 groupsets offering a 11 50t gear range x wide in three price tiers with a 9 speed shifting mech. At the top of the line is box one in orange prime 9 the lightest of the offerings made from carbon and with an msrp of 627. The box prime 9 range aims to convince us the nine gears is plenty providing you still have a wide range of ratios available. Box one prime 9 x wide groupset in this day and age a posh 9 speed drivetrain might sound like an oxymoron but we can see the logic.

All nine cogs are one piece of chromoly steel riveted to a splined. The alloy box 2 is just 270 and a much easier sale to commit to.