Out of all the tires I have tried out at the track, my favorite is the cheap Innova Chopper tires. http://www.bicycletires.com/pikskt/innova_skinny_cat_24_tire/pp.htm
I also believe my BoXer handles better with the narrow tires rather then the 2.5 hookworms.
I also believe my BoXer handles better with the narrow tires rather then the 2.5 hookworms.