Brand new Bottom Bracket not included MODEL NO FC-5800 SERIES SHIMANO 105 5800 Series Color Black Average weight 776 g (53-39T) 773 g (52-36T) 757 g (50-34T) Chainring combination 52-36T Q-factor (mm) 146 Crank arm length (mm)|175 ✔ Compatible bottom bracket type|Outboard ✔ Threaded bottom bracket shell width (mm)|68 ✔ Threaded bottom bracket shell width (mm)|70 ✔ Crank fixing screw included ✔