Minits Light and QBP super light BMX tubes will be arriving in the mail next week.

Best I can tell, stock tires and tubes are 445grams/tire and 130grams/tube for 1150 grams on the bike. Minits Light at 170grams/tire and QBP super light tubes at 78 grams /tube for a total of 496 grams, total weight savings of 654 grams (1.4 pounds!) of rotating weight.

Of course, I may be creating the ultimate flat tire machine.