Road bike frame Material:full carbon fiber Finish:3K,UD Weight:from 850g With:31.6mm seat post XC-R826(S)Full carbon fiber road frame set Size:500,520,540,560,580Shimano DI2 compatibleBB;Regular or BB30Material:full carbon fiberFinish:3k,UDWeight:from 880g FK-R826(fork)Weight:350g Shimano DI2 compatible, 850g, road carbon bike frame