It might be an idea to do it Dee,but you have to make up your mind whether doing that attracts to that point rather than diminishing it. Tricky call but knowing you, you’ll do a few to get the best out of it. It really is a good subject and should do well in competitions.
It is a good photo and very military in style–would be a shame to diminish the total feel of the picture by creating blur. I think it would be better to remove the soldier behind the lead bike. Leave all the rest intact–very good picture–nothing in there that should not be. Would suggest as an idea–cut out lead biker–and re paste in so you can then stretch him bigger to cover your man behind–see how it looks.