I apparently broke a spoke from the ride! My wheels were also quite a bit out of true. Just had the LBS fix me up. My rear tire was also super worn and got a bontrager AW3 HCL. I was planning on a GP4000s when the time came but this is what they carry (didn't want to wait to order). This is what they all ride at the shop apparently so I figured I'd give it a shot. Anything is likely an upgrade over the stock Conti Ultra Sport tires. I was advised to just keep riding the stock front since it has a bit of life left, so that works for me.