Sunline SL-1 520 Offroad Rear Sprocket – Lightweight Strength for Aggressive Riders
Take your off-road performance to the next level with the Sunline SL-1 520 Rear Sprocket—engineered for durability, precision, and high-performance power transfer. Whether you're tearing through trails, racing motocross, or building a race-ready machine, this rear sprocket is designed to meet the demands of serious riders.
Crafted from aerospace-grade aluminum and CNC-machined for exacting tolerances, the SL-1 combines lightweight construction with rugged strength. Its advanced anodized finish protects against corrosion and wear, even in the harshest dirt, sand, and mud environments. Purpose-built for 520 chains, the SL-1 delivers maximum efficiency and power to your rear wheel—exactly where it counts.
Key Features:
- CNC-Machined Aerospace Aluminum Construction: Delivers ultra-lightweight strength without compromising durability.
- Optimized for 520 Chain Setups: Perfect fit and superior performance for off-road and motocross applications.
- Hard Anodized Finish: Increases resistance to wear, rust, and corrosion for extended sprocket life.
- Precision Fitment: Engineered to exact standards to ensure smooth, reliable power transfer.
- Lightweight Design: Reduces unsprung mass to improve throttle response and overall handling.
Why Riders Choose the Sunline SL-1:
- Built for competitive off-road and motocross riding
- Helps reduce drivetrain drag and boost acceleration
- Long-lasting performance in rugged terrain and extreme conditions
Upgrade your ride with the Sunline SL-1 520 Rear Sprocket—where precision engineering meets race-ready performance.
| Specifications | |
|---|---|
| SKU | 307-0990-520-52 |
| Brand | Sunline |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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Part Numbers
| SKU | MPN | Availability | In-Store Pickup | |
|---|---|---|---|---|
| 52 Tooth | 307-0990-520-52 | 1 In Stock. Ready to ship. | - | |
| 50 Tooth | 307-0990-520-50 | 1 In Stock. Ready to ship. | - | |
| 48 Tooth | 307-0990-520-48 | 1 In Stock. Ready to ship. | - | |
| 44 Tooth | 307-0990-520-44 | 1 In Stock. Ready to ship. | - | |
| 40 Tooth | 307-0990-520-40 | 1 In Stock. Ready to ship. | - | |
| 38 Tooth | 307-0990-520-38 | 1 In Stock. Ready to ship. | - |





















