10. BOX Components Box 3 Prime 9 Drivetrain 2020 | Mountain Bike …
Link: https://www.imbikemag.com/reviews/components/drivetrain/box-components-box-3-prime-9-drivetrain-2020/
Description: WebPrime 9 Cassette. For testing here we have the Box 3 nine-speed system, which includes a rear mech, cassette, chain and shifter. This all comes in at $199.99 or £200.00. Cassette. At the Box Three level, there are two options, either 11 to 46 or 11 to 50t. Both fit onto a standard, splined freehub body but need a spacer at the back.