Here's my Cannondale F500. Skinny tires (Tom Slick), Night Sun light, Planet Bike blinky, SKS fender and front mud flap, a new rear cluster -- 12-23 -- that's perfect for my flat ride 16.5 mile round trip commute. I keep the Mtn wheels and wide range cluster for the rare (usually Tahoe vacation) days I get in the dirt.