I’m sorry to hear you’ve had an issue with premature tire wear on your Street Glide. It’s frustrating when parts wear out earlier than expected. The tire shortage during COVID definitely complicated things by limiting replacement options.

While the Night Dragons may have still had tread life left, it sounds like the gash and uneven wear you noticed means it was indeed time for a new tire, despite being approved at your last service. I would politely discuss these wear signs with the dealership and ask them to take extra care inspecting tires at future services. Tires are critical for safe riding. Most dealers aim to do right by their customers, so hopefully they will address this oversight and make it up to you when the new tire comes in. Worn tires can sneak up on anyone, but clear communication with your servicing dealer can help avoid surprises going forward. Ride safe and enjoy the open road on that new rubber!