SRAM 900 Rear Hub - QR x 135mm/12 x 142mm 6-Bolt XDR Black 32H Tires 8 fixed pins and 12

8 fixed pins and 12 M3-9mm replaceable pins

the Carbon Classic Electric City Bicycle is 50% lighter than aluminum yet incredibly strong

and outstanding controller

G69 material is super light with superior strength over 6061 T6

2 Black Steel Bolts

SRAM 900 Rear Hub - QR x 135mm/12 x 142mm 6-Bolt XDR Black 32H Tires 8 fixed pins and 12900 Rear HubSealed cartridge bearings Angled flanges provide optimum spoke geometry Axle end caps for alternate frame specs are included (except for Boost hubs) and can be swapped without tools Flange Diameter, Left 58 Rear Axle 12mm Thru x 142mm Flange Diameter, Right 60 Cassette Body Type SRAM XDR Center to Flange, Left 34. 25 Center to Flange, Right 20. 5 Color Black Skewer Included Yes Bearing Type Sealed Cartridge Weight 275 Defined Color Black