Ban njero ora bener-bener anti bocor, lan kanthi alamiah bakal kempès baka sethithik. Ban njero saka butyl luwih anti bocor tinimbang saka bahan karè latèks. At least one public bicycle sharing system, Bixi, is inflating tires with nitrogen, instead of simple air, which is already 78% nitrogen, in an attempt to keep the tires at the proper inflation pressure longer, though the effectiveness of this is debatable.