Any e-biker with a Bosch motor wanting a sturdy crank upgrade

4mm) for a quieter drivetrain with improved chain wear and best drop performance

When not in use

Tighten ReMount M4 screw to 3-4Nm

Pin Quantity: 9 per side

BOX Two Prime 9 Speed Cassette - Shimano HG Splined - 11-50T - 9 Speed Envelope Shipping Any e-biker with a BoschOriginally designed for use with e bikes, the BOX Two Prime 9 Speed Cassette is able to withstand a whole lot of punishment and is the most durable cassette in the Box range. It features all steel cogs with the largest ones pinned to a lightweight alloy carrier. This cassette will give you all the same range as your riding buddies on their expensive 12 speed setups but you'll have to shift a whole lot less to find the right gear. Who's this item for: