SHIMANO CS-HG31 Hyperglide Bicycle CassettesShimano cassettes are designed with Hyperglide technology for quicker and smoother shifting with tooth profiling and zinc phosphate black finish for longer life. Product information: Color: ? Nickel Sport Type: Cycling Series: ALTUS CS HG31 8 Cassette 8 speed Teeth: 11 13 15 17 20 23 26 34T Cassette system ??

Self-locking zipper

or mountain bike rides

reinforced with two RaceGuard fabric layers

Full-Length Zipper: Provides easy loading and unloading of your snowboard

compatible eye port

Reflective features for added safety

Precision-crafted to meet the logistical standards of alpine executives:

Simply sip from the straw

Patented magnetic hood system (helmet magnet included)

Cut-resistant anchor strap secures around a fixed object to protect your bag

Specialized Mapping and eBike Integration

and either version will come with a long cable to connect the headlight to the e-bikes motor/battery system