Here's a suggested eBay description for your 2017 Indian Chieftain Roadmaster CDI Box (Ignition Module) ECU:

2017 Indian Chieftain Roadmaster CDI Box Ignitor ECU - Used

Upgrade or replace your motorcycle's ignition system with this used CDI Box (Ignitor ECU) designed for the 2017 Indian Chieftain Roadmaster. This crucial component plays a vital role in your bike’s performance, ensuring reliable ignition and smooth operation.

Key Features:

• Compatibility: Specifically designed for 2017 Indian Chieftain Roadmaster models.
• Condition: Used, in good working condition with normal signs of wear. [You can specify any specific details about its condition, such as any minor scratches or functionality.]
• Performance: Provides reliable ignition performance to keep your motorcycle running smoothly.
• Easy Installation: Direct replacement for your existing CDI box, making it a straightforward upgrade.

Why You Should Buy: This CDI Box is an essential part for maintaining or enhancing the performance of your Indian Chieftain Roadmaster. Whether you're replacing a faulty unit or looking to have a spare on hand, this is a great opportunity to secure a quality component at a reasonable price.

Shipping: Fast and secure shipping available. [Include any shipping policies or options.]