Just came across some interesting info at Motostrano Blog. Tire weights; REAR AVON DISTANZIA 150/60HR-17 16.2 lbs REAR CONTI SM 150/60HR-17 12.1 lbs FRONT AVON DISTNAZIA 120/70-17 10 lbs FRONT CONTI SM 120/70-17 9.2 Conclusion- for a DRZ or other lighter weight street supermoto, a 4 lb...