CRANK LENGTH: 170mm, 172.5mm, 175mm GEAR: 40.42TCRANK MATERIAL: AL-6061-T6 CRANK FINISH: HBKCHAINRING: 4mm Alloy CNC DetailCHAINRING FINISH OUTSIDE: 24mm BEARING COMPATIBILITY: 11/125 CHAINLINE: 49.5mmPCD: 110mmQ-FACTOR: 151mmWEIGHT: 750g We apologize for the inconvenience, but at the moment, we do not offer sales of this product to individual consumers. However, we do have options for B2B sales and would be happy to assist you through our offline business team. You can reach them at sales@wheeltop.com for further information.