Skip to main content
Box One/Two Prime 9 X-Wide 11-50T Range Multi Shift Drivetrain Cycling Groupset Shifter Rear Derailleur Bike Cassette Chain Shift Cable & Housing Kit
Box

Box One/Two Prime 9 X-Wide 11-50T Range Multi Shift Drivetrain Cycling Groupset Shifter Rear Derailleur Bike Cassette Chain Shift Cable & Housing Kit

Bottom line: The Box One/Two Prime 9 X-Wide 11-50T Range Multi Shift Drivetrain is a specs-and-price decision rather than a crowd-consensus one in the sim racing category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

Check price on Amazon

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Mike Perry — Hardware researcher since 2014. For sim-racing wheels, load-cell pedals and cockpits, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ Backed by Box's warranty and support channels

Cons

  • ✗ Check the listed dimensions, connectors and platform compatibility against your setup before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

SpecPicks Verdict

SpecPicks scored Box One/Two Prime 9 X-Wide 11-50T Range Multi Shift Drivetrain… using a rating × review-volume × price-fit model applied to published specs and reviews across the sim racing category. Box's sim racing lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for sim racing of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • ✅INCLUDED COMPONENTS: Maximize your ride's potential with our Prime Performance Package. Box One Prime 9 Multi Shift Shifter, X-Wide Rear Derailleur, Chain 126L DLC, Box Two Prime 9 11-50T Cassette, and Box One Shift Cable & Housing Kit. Seamless integration for a Prime Cycling experience.
  • ✅SHIFTER: Our Bicycle Shifter equipped with Box One Slick Coated Inner Cable, 1 and 2 Piece Pull Lever, and seamless navigation of up to 3 gears per shift. The lightweight hinged clamp, machined with a die-cast top shell, guarantees unmatched precision for a standout ride.
  • ✅REAR DERAILLEUR: Conquer tough terrains with our 9 Speed Derailleur, crafted for aggressive landscapes. It features an adjustable Tri-Pack Limited Slip Clutch, durable 3D forged linkages, a carbon-nylon composite knuckle, and Pivot-Tech Cable Stay for a rugged, reliable ride.
  • ✅CASSETTE: Improve your ride with our 9 Speed Cassette, ultra-wide ratios and consistent progression. The steel lightweight unibody, alloy internal support disc. Designed for peak cycling, compatible with HG Freehub Bodies.
  • ✅CHAIN: Our 9 Speed Chain sets the standard with durable dual-coating DLC & Nickel Protection, hardened solid pins. Whether wide or narrow chainring, it delivers unmatched strength. The black connecting link adds style to rugged durability, making it a standout choice.
  • ✅SHIFT CABLE & HOUSING KIT -Our Box One Shift Cable & Housing Kit is the easiest way to get silky smooth and consistent shifts on any drivetrain. Compatible with 12, 11, 10, 9, and 8 speeds. Inner Cable 2100mm, 4mm Housing 2000mm, Prepared with silicone grease, 1.8mm Cable End Crimps, 4mm Sealed Short Ferrules. This kit is a combination of our best performing Cable Housing and Slick Coated Stainless Steel inner cable

Full Specifications

BrandBox
ColorBlack
MaterialAlloy Steel
Mount TypeBraze-On Mount
Model Number2H-C7II-MFJD
Material TypeAlloy Steel
Mounting TypeBraze-On Mount
Item Type Name11-50T X-Wide Multi-Shift Groupset
Number of Teeth50
Case Material TypeAlloy Steel
Included ComponentsCassette, Chain, Rear derailleur, Shift Housing Kit, Shifter
Warranty DescriptionLimited Lifetime
Manufacturer Part Number2H-C7II-MFJD

Ready to buy?

Box One/Two Prime 9 X-Wide 11-50T Range Multi Shift Drivetrain Cycling Groupset Shifter Rear Derailleur Bike Cassette Chain Shift Cable & Housing Kit is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

Related Sim Racing

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →

Earliest SpecPicks reviews

Browse full archive →