What are the main differences between Suntour XCT and XCM suspension forks and which one would be the better choice for my mountain bike?

The main differences between Suntour XCT and XCM suspension forks are in their weight, travel distance, and adjustability. The XCT is lighter and has less travel distance, while the XCM is heavier and offers more travel distance and adjustability.

If you prioritize weight and smoother performance, the XCT would be the better choice. However, if you value durability and the ability to handle rougher terrains, the XCM would be a better option for your mountain bike.