I was the rider that lost the Gas Cap. I didn't screw it down tight after checking the fuel level. My China bike made it a total of 82 miles that day. I rode from University City to starting point. Other than losing one brake pad in Coronado. I didn't have any problems with my China bike. I ordered an expansion chamber from Sick Bike Parts after I got home that night. I hope that will make me faster than that rusted out bike from Santa Cruz

Anyone have any experience installing the expansion chamber?
p.s. I ride my bike daily to work 5.2 miles each way with 2 massive hills. Go China Girl !!!