Bicycle Tag of bike

As Will says, you don't have to ask for permission to tag. As long as you upload pictures of the old and new tags first, the tag is yours. Beware: There are various ways of getting 'tagzumped', meaning that someone else uploads both old and new tag before you do, even if you've also bagged the old tag and picked a new one, and even if you've uploaded one of your pictures but not the other. Also have a look at the Tag Map (links on the first page of the thread) before you pick a new tag, as quite a lot of stuff has already been done. Good luck!