![Load image into Gallery viewer, E13 Unisex_Adult Helix Race-9-50T-12v Bike Cassettes, Grey/Silver, 12v - RACKTRENDZ](http://racktrendz.com/cdn/shop/products/shimano_105_5800_groupset_400x@2x.jpg?v=1594450767)
![Load image into Gallery viewer, E13 Unisex_Adult Helix Race-9-50T-12v Bike Cassettes, Grey/Silver, 12v - RACKTRENDZ](http://racktrendz.com/cdn/shop/files/61cdat9LBlL_e4bed8cb-e3c0-4dc4-83aa-6dbeb4b7922e_400x@2x.jpg?v=1705534130)
![Load image into Gallery viewer, E13 Unisex_Adult Helix Race-9-50T-12v Bike Cassettes, Grey/Silver, 12v - RACKTRENDZ](http://racktrendz.com/cdn/shop/files/61GBKpIKApL_8480a61b-6655-4e41-bcc9-86df65aef0af_400x@2x.jpg?v=1705534131)
New in 2021, the HELIX Race cassette offers a 9-50 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.
0.56 kilograms