Those are cool, but will require you either to drop the front end about 2 inches to get enough fork to clamp them onto - on the top, OR, cut your body work so you could mount them below the top triple clamp and have to deal with clearance issues.... The 250R-specific-ness of those are 100% due to the fact that they are 37mm - which is the diameter of the 250's forks... Any 37mm clip-on will work, but that's just about the cheapest clip-on I have seen yet, so if it will work for what you want to do, go for it! Personally going to save up for the woodcrafts - a much better system, IMO.