CRANK LENGTH:170,172.5,175mmGEAR:32T,34T,36T,38T,40T,42TCRANK MATERIAL:AL-6061-T6CRANK FINISH:Black Sand AnodizedOUTER CHAINRING:4mm,Alloy,CNC Detail,CHAINRING FINISH:Black Sand AnodizedBB:24mmCOMPATIBILITY:11SCHAINLINE:49.5mm,52mmPCD:104mmQ-FACTOR:172mm You can customize the logo 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. CRANK LENGTHGEARCRANK MATERIALCRANK FINISHOUTER CHAINRINGCHAINRING FINISHOUTSIDE BEARINGCOMPATIBILITYCHAINLINEPCDQ-FACTOR