"Mantis Raptor, boys 24 , is a decent bike but all Chinese. It'll do for the next 3-4 years that it is in servcie. And I did ride it after assembly for about 1/2 mile. Shifter, although it's a Shimano , is difficult to operate. Not easily adjusted. Couldn't get to all the bearings to re-lubricate, because I don't have a set of thin hi-alloy fixed end wrenches and not a spanner wrench. And The tools they supplied are of such soft metal that they rounded out when I applied force to them. So, not recommended for a long term usage. Love, Dad."