I was cleaning up the shop and found these factory replacement shocks for the the honda shadow I am working on. I replaced the shocks on the shadow with lowering shocks so these are just hanging around. I compared them to the chrome bars the trike has now and they are almost perfect match. I guess the trike is getting rear suspension. Gonna have to get a chain tensioner. Never messed with one? Any decent cheap options that people have used with success?