Bought my bike new in 18 just now replacing the OEM tires. I removed the rims myself to save money when having tires swapped. Front rim brake rotor bolts were extremely hard to get off using hand tools. It seemed like too much thread locker or incorrect tightening method from factory was used. Get tires put on and go to install rotors using same hand tools. Got the left side on with a struggle but the right side now has stripped threads and a broken bolt. Took rim to a local non Kaw dealer and the tech came to the same conclusion. Will be going to Kawasaki dealership this week to see if this covered under warranty though Im not getting my hopes up. Is this a known issue with newer ZX10's ? Tech at dealership said he could remove the bolt and tap the threads but he didnt think it would stand up to the stress and wouldn't gamble on something so crucial. Just want to see if anyone else has had this happen.