Mine had a fair bit of play in it side to side which turns out to be the rubber cush drives that have failed at 5000 miles Warranty is going to replace the cush drives, rear sprocket and flange as a goodwill gesture as final drive components are not covered under warranty
Cleaned my bike on the weekend and mine has quite a lot of play, I could quite easily have thought it was normal, as it appears to float on its mounts, so thanks for the heads up