Hi All, I would like some advice please. I had a recent service and was advised that the steering head needed replacement shortly as well as chain and sprocket. No problem, take mechanics advice. My bike ZZR600 is 5 years old so might be due. Get work done and bike runs like a dream, however, now i can't lock the bike. Turn the bars to left to 'lock' but key wont turn to lock position. Therefor can't lock bike with key. Took back to mechanic (reputable brisbane service centre)and he said that perhaps because they were aftermarket parts... blah. He said he never heard of this happening before and said he could see where it was missing by a mm or so. Had anyone ever heard of this?? is it something i should be worried about?? Steering seems fine and other than this being a concern i think its ok but would really appreciate any advice from the group. Regards, NRJ