The Altis Sigma Front Sprocket is a replacement front sprocket for Altis Sigma applications, built to provide a durable, consistent interface at the drive end. It features a larger flange designed to reduce movement on the driveshaft, helping the sprocket sit more securely during use. Made from hardened tool steel for longevity and finished with a Black Oxide coated surface, it’s supplied ready to install with a new jack shaft seal included and already installed in the sprocket. Choose from 2 tooth-count options to match your preferred gearing: 13 Tooth(Stock) for the stock (OEM size) setup, or 14 Tooth to change gearing characteristics.
Designed with a larger flange to reduce movement on the driveshaft, this front sprocket focuses on maintaining a more stable fit at the shaft interface. That design detail is intended to help control how the sprocket sits and behaves during operation, while still serving as a direct replacement front sprocket for Altis Sigma applications.
Constructed from hardened tool steel for longevity, the Altis Sigma Front Sprocket is built for repeated drivetrain use. A Black Oxide coated finish is applied as supplied, providing a consistent surface treatment across the completed sprocket.
Select the tooth count that matches your riding priorities. The 13 Tooth(Stock) option is the stock (OEM size) setup. The 14 Tooth option is described as adding more top speed and extended range by lowering your rpm’s, with the stated tradeoff of less torque.
Altis Sigma Front Sprocket with a larger flange to reduce movement on the driveshaft, hardened tool steel construction, and a Black Oxide coated finish. A new jack shaft seal is included and installed in the sprocket.
| Product name | Altis Sigma Front Sprocket |
|---|---|
| Material | Hardened Tool steel |
| Finish | Black Oxide coated |
| Tooth count options | 13 Tooth(Stock), 14 Tooth |
| Included | New Jack shaft seal included and installed in the sprocket. |
| Variant SKUs | A-SIGCS-13, A-SIGCS-14 |
| Product name | Altis Sigma Front Sprocket |
| Finish | Black Oxide coated |
| Material | Hardened Tool steel |
| Tooth count options | 13 Tooth(Stock), 14 Tooth |
| Notes on gearing | 13 tooth is stock (OEM Size). 14 tooth adds more top speed and extended range by lowering your rpm’s which comes at a cost of less torque. |
| Included | New Jack shaft seal included and installed in the sprocket. |
Designed for Altis Sigma applications.
A new jack shaft seal is included and already installed in the sprocket.
Gearing notes: 13 tooth is stock (OEM Size). 14 tooth adds more top speed and extended range by lowering your rpm’s which comes at a cost of less torque.
