These items dont work for me as i had hoped for, I'm currently looking at dry bags for my set up and doing away with panniers. The yukon wp does not come with the tank ring so you will need to buy that separately (starts at £30) as I used mine on the back of the bike, it has 1 hole drilled in for the security bolt already but you could drill more if you wanted to change the position on the tank for fitment. Yukon waterproof tank bag has 6L volume Waterproof Tail bag is 8L (SOLD) Both of these had some moisture condensation in them after a very heavy downpour that i rode through. I believe this is because the water coming from the rear wheel entered from underneath as thats the part that was a bit damp. This shouldn't be a problem if mounted on the tank and the tail bag being mounted where water cant flick up to it from a wheel. Id like £70 + pp for the yukon And £30 + pp for the tail bag Cheers