Shimano Ultegra CS-R8000 Cassette - 11 Speed 12-25t Silver MFPN=00.6518.018.001 this is hardwax made for

this is hardwax made for the coldest conditions

The Kid Trailer Thru Axles allow users to attach a hitch mount style trailer to any thru-axle equipped bike

Uses exitsting Code pads

from the attention-grabbing Daytime Flash Mode to the long-lasting 60-hour runtime Femto Model

Threaded for multi-speed freewheel (7sp)

Shimano Ultegra CS-R8000 Cassette - 11 Speed 12-25t Silver MFPN=00.6518.018.001 this is hardwax made forShimano Ultegra R8000 11 speed cassette provides high performance gear combinations that provide superior rider choice. The CS R8000 cassette meets durability requirements for E MTB applications Range 12 25 Cogs 12 13 14 15 16 17 18 19 21 23 25 Cassette Body Type Shimano HG 11 12 Speed Road Drivetrain Speeds 11 Color Silver Weight 243 Designed for ebike Yes Defined Color Silver