Well it is a single after all but I did not find it intrusive. I did about 100 miles that weekend and was very impressed. I did not suffer any deadening of my fingers or other bits. The seat was a bit of a pain at first as has been discussed in these pages before but it did get better and the one nice thig is that it is very easy to simply stand up when the speed allowed it. I know there are people who claim that they get almost 80mpg at higher speeds than I have quoted but I never got near. Mine is the single spark bike.