Just put fresh tires on the bike this past weekend and got out for a test spin this evening. When I got home from a ride on the highway I was doing a once over to make sure there were no issue and I noticed when I touched the rear driveshaft pumpkin that it was hot to the touch. I suspect that this is normal but this is the first time I have ever placed my hand on the pumpkin and I am curious if it's normal for the rear drive to get that hot?