Basil Universal Cargo Carrier Rear Rack MIK Mount Matte Black Model=Commit Tech Top Defined Color Black Rings 32 Defined Color Black Rings 32 Spindle Interface Type SRAM DUB Chainring BCD Direct Mount SRAM Color Black Chainline Hub Compatibility 135 142 MTB Hubs Drivetrain Speeds 11 Drivetrain Speeds 12 Number of Chainrings Chain Retaining Single Crank Intended Use Mountain BB Included No Pedal Spindle 9 16" Crank Length (mm) 165 Color Black Range 11 50 Cassette Cogs 11 13 15 17 20 23 26 30 34 39 50 Cassette Body Type Shimano SRAM 8 9 10 Speed Drivetrain Speeds 11 Designed for ebike Yes Defined Color Black table{border collapse:collapse fastening option for light (80mm)