Praxis Works Leva Time Road Cycling Crankset, 175 mm crank length, and M24 BB Good condition. Used for a little less than a year, so there is some normal wear. This is the stock crankset from a recent road bicycle purchase. However, I needed shorter crank arms. Crankset Technical Specifications: Color: Black Shimano and SRAM 10-11 speed compatible Dual chainrings 50 x 34 teeth Cold forged aluminum chainrings for smooth shifting and maximum durability 110 mm Bolt Center Diameter 175 mm crank arm length M24 Bottom Bracket Technical Specifications: Color: Black Standard road 68 mm width BSA threads (for English threaded frame) Includes wave washer (goes on drive side) 24mm Drive bearing / 22mm NonDrive bearing - cartridge bearings Forged & machined heat-treated AL Cups Instruction/Installation Manual available at praxiscycles.com/manual-m24-bsa Dust Covers not included as they did not come with original bicycle purchase and are not used for road bicycle installations. Required Tools (not included): Any standard BB tool for 16-notch 44mm outboard BB cups and standard 3/8 inch drive wrench