Hybrid sport bike type men wheel size 28 inch model 2017 frame material aluminium frame geometry diamond bike frame sizes cm 55 60 50 65 cm frame sizes m l xxl xl colour black braking system disc brake brakes shimano br m315 rear derailleur shimano deore number of gears 30 gear system with derailleur front derailleur shimano deore crankset shimano fc t521 brake type hydraulic disc brake cassette shimano hg500 chain kmc hg54 rims x