Diamondback Insight RS User
I bought this bike three weeks ago for commuting about 20-24 miles round trip once a week to start. I got it on sale for $250 and it was already assembled with the bike rack and fenders.
The first trip I had on it the chain came off. I am a newbie on a bike, so I freaked at first then just put it back on. They told me to come in and get the chained adjusted or tuned, and I did.
Rode to work and back and the ride was awesome! Brakes are a bit loud in the front, and the gear shifting has been a bit sticky though. Overall a great experience, until my second trip to work.
I was riding in when the bike just stopped and slammed on its breaks. The drivetrain completely snapped off and crunched into the chain and spokes. Completely broken, unfixable. I had dropped it earlier on the side and it may have cracked it, but the shifting was acting up prior to the fall. Not sure what happened, had to get a ride in and will take it to the shop tonight for a whole new bike.
Kind of bummed out about the whole thing. Seemed like a great bike, but I think the components are very cheaply made. It's obvious that this is the case as the piece that held the drivetrain was super cheap and it just sheared off easily. Luckily the guy behind me didn't crash into me. I'll report more later if I find out something different. Guess you get what you pay for.