Hi, ok thanks for that, I think I'll ask the shop that's going to be doing the service what they reckon and if needs be I think that I will remove them myself at home if they have to come off, it's not to big a job and I would rather save the extra workshop time cost but it's still a bit of a pain, thanks again for your input and hope your happy with the Puig bars as I was looking at them before I settled on the ones I have.I think the Hepco and becker bars and may be the R &G bars can either stay on or are easy to remove, i bought the Puig bars and although i think they look the best you have to remove them for the big service and they take a few hours each way.