1) pipe/silencer feels heavy when removing subframe. lighter pipe 2) choose the lighter weight tires. (someone did a whole listing in the crf450 forum) 3)shock feels really heavy when removed from bike(whats the remedy?) 4) 1/2 lb lighter triple clamps(applied, ride eng. etc) 5) i noticed a lot of rough edges, sharp edges and extra tabs on the frame, motor that might be grounded off? 6)ti spring would save weight, but too$$$ so far i think that would be about 10 lbs?