e*thirteen Helix Race 12-Speed 13-52T Cassette - Black Size:13-52 Bottom Bracket Shell Width: 61mm*

Bottom Bracket Shell Width: 61mm* to 73mm

The short 70mm reach has been a popular choice in recent years

You never know what you’ll get on a gravel ride

The silicone’s thickness is meticulously designed to keeping the earbuds compact while providing just the right cushioning at contact points

-17°Material: Aluminium (7075)Bolt Material: Titanium

e*thirteen Helix Race 12-Speed 13-52T Cassette - Black Size:13-52 Bottom Bracket Shell Width: 61mm*At e*thirteen, we're always striving to bring something new to the table. That's why we created the Helix cassette line to offer unparalleled cross compatibility without sacrificing performance. As e bikes have become more popular, we set out to engineer a close ratio cassette specifically for them. Enter the Helix Race 13 52T a 12 speed close ratio cassette specifically engineered for steep terrain where climbing speeds are high and descents are