I just purchase my r1 last weekend. I went ahead and ordered the solo seat cowl not realizing that it was not removable after installation. The reason I would want to remove the seat is because I would like to have a place two store my registration and insurance cards and I also installed a toggle switch under the rear seat to turn on and off the USB charger that I installed up front for my cell phone and/or GPS system. If you leave that USB charger hot all the time it will drain the battery in 3 to 4 days. Having these things hidden under the seat in a locked and safe storage would be really nice. I also keep my set of night lenses for my sunglasses back there in case I get stuck in the dark. This is my 10th bike, 8th Yamaha, and 5th R1. All of my previous motorcycles have had storage available underneath the seat. This bike doesn't even have room for the its own tools. I did find that the right side trim around the right side of the forks has a storage box underneath of it but it requires allen key tools to take it off. Again, not very easily accessible. I was certain that when Yamaha decided to go back to the side mounted exhaust that the bike would regain some under seat storage. I was wrong. I paid around $250 for this seat cowl and it's going to be a total pain in the butt to remove every time my wife or my daughter wants to go for a ride. It has also now required that I wear a backpack to take anything I need along with me like tools or extra eyewear or my registration / insurance card. Just a very poor design if you ask me. It would have not taken much in the way of engineering to have made this removable via the key like every other R1 has ever been able to do.
As for right ability? This bike is great! I absolutely love it and have no other complaints besides the seat issue. Actually I do... The section of the right and left side tail spoilers down where the front seat ends at the back of the bike is very thin and mine was already cracked when I picked the bike up. I can see this being a weak point in the trim and that several people will have trouble with that part cracking very easily. Beyond that I have had this bike torn down completely to install all of my new wiring, frame sliders, exhaust, etc and it is put together very very well!