I’m running out of ideas here, so any advice or suggestions would be greatly appreciated. My bike is a Spectral 6, and while it’s fully equipped with Shimano Deore components, the crankset is a Miranda for some reason. As you can see in the picture, the chain is damaging the frame, but I haven’t figured out exactly why this is happening. My best guess is that the damage is caused by chain tension or pulls after rough landings from jumps and similar impacts.

Previously, I wrapped the affected area with a piece of tubing, which worked for about a month. However, after a particularly tough ride yesterday, I came home to find the tubing torn apart. Before I replace it with another piece of tubing to prevent further damage, I’d like to figure out a more reliable solution.

What are my options here? Could the issue be related to the crankset? Is it poor frame design from Canyon, with insufficient clearance between the chain and the frame? Should I consider a different type of protection, like a small metal plate, or something else entirely?