BOX Three Prime 9 eBike Cassette 9 Speed 12 50t Black MFPN=398 00 691 Available in several configurations to Available in several configurations to meet the needs of different types of riding and different types of riders Color Natural Carbon Number of Chainrings No Rings No Spider Included Crank Length (mm) 175 Crank Intended Use Road BB Included No Pedal Spindle 9 16" Spindle Interface Type SRAM DUB Chainring BCD Direct Mount Defined Color Carbon Cassette Body Type Shimano SRAM 8 9 10 Speed Cassette Cogs 12 14 16 18 22 28 34 42 50 Color Black Defined Color Black Designed for ebike Yes Drivetrain Speeds 9 Range 12 50 Constructed using a standard freehub body (HG)