so, 2 year old rocket GT, used regularly with 10k on the clock. Started to have strange problems, felt like it was misfiring etc… then the quick shift stopped working. Took it to triumph service and it turned out the battery wasn’t holding its charge which was causing everything else to go wrong. Put in new battery and all is fine now. When the quick shift stopped working it never occurred to me that it would be battery related but it’s obvious if you think about it that the quick shift is electrical and probably required a certain amount of power to function. Just thought this might be useful to others experiencing similar issues. I was very surprised to have a 2 year old battery have issues.