I ordered some motorcycle tubes for the scooter from Ebay but USPS has it doing laps around Kansas City, no wonder their broke. That got me thinking.. Harbor Freight has 10 inch tubes in the exact size and valve that I ordered. Makes we wonder if I should of just ran to HF. Granted no one lists the thickness of the rubber so would hard to compare. Disclaimer this scooter only goes 45-50 downhill so it's not a speed demon. Thoughts?