The 12 1/2 x 2 3/4 inner tube can replace 57-203, 62-203,12.5x2.50 inner tubes, fit for dirt bike mx350 mx400, Freedom 942, 943, 946, 959, GT350, GT500, Mongoose M350, M500, Z350, X-Treme X-560 GT-200 EZIP E-500 E-750 E-900 E-1000, gas scooter escooter and many other mini bike, bicycle, electric dirt bike who uses 12 1/2 x 2 3/4 tire tube.
These 12.5x2.75 electric scooter inner tubes are made with thickened rubber that holds more air than regular rubber inner tubes. These inner tubes will hold air for months without needing to be refilled and are less likely to break and last longer.
In addition to good air retention, this thickened 12 1/2x2 3/4 inner tube is softer than regular rubber inner tubes. With better shock and vibration absorption properties, it makes the dirt bike tires more shock absorbing and smoother riding.
The 12 inch dirt bike tube uses TR13 straight valve stem, which has rubber coated straight valve stems provide a stronger seat seal to keep sand and dirt out of inner tubes and tires. The sturdy rubber stem seat is also tear-resistant to extend valve life.
Package Includes: 2 Pack of 12.5"x2.75" inner tubes