Fits with 8" rim. Inner Tube Size Fits with 6" rim. Valve Type:TR13 Straight Valve. 15x6.00-6 (TR13 Straight Valve). 18x8.50-8, 18x9.50-8 (TR13 Straight Valve). 2/4PCS inner tubes. 20x8.00-8, 20x10.00-8 (TR13 Straight Valve).
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