Thickned 40% 2.50/2.75-10 Inner Tube, Heavy Duty 2.50-10 2.75-10 Dirt Bike Tube with TR4 Straight Valve Stem, Compatible with Honda Crf50/Xr50, Razor MX650/MX500, Suzuki DRZ70/JR50, Yamaha PW50 2Pcs