STI
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IRC Rear Heavy Duty Inner Tube - 110/100-18 120-100-18 (4.50/5.00-18)
Rear Heavy Duty Tire / Inner Tube$21.95 -
STI EXTREME Heavy Duty Inner Tube - 70/100-17 / (2.25/2.50-17)
EXTREME Heavy Duty Tire / Inner Tube$12.78