Can't handle exposure to heat
It worked fine until the high temperature was 115 F for 2 days while it was sitting outside on my workbench. Then the gears disintegrated the next time I tried to use it. So it can't handle exposure to heat. It cleans the sides of the chain better than the top and bottom, because that is where most of the brushes are. The chain goes straight thru the cleaner without deflection, so it works on internal hub gears without a derailler. The gears may stick a little when you are 1st getting started running the chain thru, but not too bad, and they turn fine once you are going.
Rating: 3 stars