Any people that have 400EX's how long have your front tires lasted. Mine are wearing kind of diagonally. What does this.

 

Mine are wearing liek that too, The tires last good if you stay in a field or on a trail, if you dont do alot of road riding they will last a while, The only thing i dont like about 400EX factory tires is i cant keep a sidewall in the back ones, I am always knockin them out, They are soft.