E13 Unisex_Adult Helix Race-9-46T-11v Bike Cassettes, Grey/Silver, 11v

New in 2021, the HELIX Race cassette offers a 9- to 46 tooth stage in 12 speeds.
This cassette offers more autonomy than any other cassette on the market.
The 9-tooth sprocket allows you to reduce your tray by one size.
With a 2-part design, replacements can be made separately.
0.53 kilograms