Racing bike type mens geometry classic racing frame sizes xl l s m bike frame sizes cm 48 51 54 56 58 60 63 cm colour grey model 2017 frame material aluminium fork material carbon gear system with derailleur number of gears 22 rear derailleur shimano 105 front derailleur shimano 105 gear shift brake lever shimano 105 crankset fsa gossamer front chain wheel teeth 5034 cassette shimano 105 rear chain wheel teeth 11 28 chain shim