I took my bike out for a quick spin this evening during the break from the rain, and when I got home I lubed my chain and hosed my bike off. I noticed with the water on my rear tire that air was seeping out. I got a nail in the center of the tire in one of the groves. I''m going to check the pressure in the morning, and ride it out to the dealer. What do you think, will I need to get a new tire (2500kms), or can they plug it, being that it's in one of the grooves?