I'll toss the Bontrager name in here and suggest a XR2 or XR3 up front and a 2 in the back, maybe even a 1. I love my 2.35 XR2 up front an 2.2" on the back. Sets up tubeless really well too. Also throw in a 30-day unconditional satisfaction guarantee, and it's hard to beat. Any Trek dealer worth his salt should be able to hook you up.