Because of lack of funds, my wife and I had no choice but to purchase two rather inexpensive folding bikes. It's the Adventure brand sold by Campingworld. Up until now they have performed quite nicely, and I have been riding it everyday now for the past three weeks. I just recently came in from a ride, and I am feeling a tad deflated. Of course, I can't expect wonders from a bike priced lower than $200, but when your wallet has anorexia, you don't have much choice.
I encountered some of the gears slipping with a very loud clacking kind of sound while changing and on top of that, when the gear was finally engaged I noticed a slight knocking noise from the back end of the bike. I pedaled backwards for a few seconds, resumed normal pedaling and all was quite until I changed gears again. Like I said, it all ran nicely at first and now this. Would the problem be coming from the derailleur and sprocket assembly? If so, what would you recommend, other than purchasing another bike because I, unfortunately can't afford that route -- love to but can't. The derailleur is of course one of those Shimano Tourney models that you would find on low priced bikes. After bringing the bike inside, I thought I would have a look see. While on the stand, I leaned the bike over so I could spin the rear wheel. As the wheel slowed down I heard that slight knocking noise again. Obviously a mechanic would need to see and experience the problem to make a definitive conclusion, but I was wondering if you experienced folks might be able to shed some light on it for me.