The Warp 9 RAWRR / Sigma Sprocket is a rear sprocket designed for the Rawrr Mantis and Altis Sigma. Built from 7075-T6 aluminum, it’s a strong, lightweight replacement or gearing-change option that keeps compatibility with the OEM 428 chain size. Choose the sprocket size that matches your setup and riding needs, with tooth count options in 40, 42, 44, 48, 54, or 58. It’s also available in Black Anodized or Red Anodized finishes to match your bike’s look. Note: a big change in tooth count can need a longer chain; extra links are not included.
Made from 7075-T6 aluminum, this rear sprocket is built for a durable, performance-focused setup while keeping weight low. It’s a solid choice when replacing a worn sprocket or when changing gearing without switching away from the specified material and fitment for this application.
This sprocket is set up for chain size 428, the OEM size listed for this application. That means it’s intended to work with the stock chain size specification while allowing you to select your preferred tooth count from the available options.
Available tooth counts include 40, 42, 44, 48, 54, and 58, letting you tailor final drive gearing to your preference. Keep in mind that a big change in tooth count can need a longer chain; extra links are not included.
Rear sprocket for the Rawrr Mantis and Altis Sigma.
A big change in tooth count can need a longer chain; extra links are not included.
| Material | 7075-T6 aluminum |
|---|
| Chain size | 428, the OEM size |
|---|---|
| Available teeth | 40, 42, 44, 48, 54 or 58 |
| Available colors | Black Anodized or Red Anodized |
