Freewheels are old tech but unfortunately they are still in use. The Cassette replaced them and they are superior to Freewheels. But to the untrained eye both look pretty much the same. It is important to know which one you have. Here is how to determine which you have. Most everything sold new nowadays is Cassette … which is far superior to Freewheel. There are lots of videos available about this, but I will stick to Parktool as they always have good videos.

Unfortunately when it comes to these sprocket sets they 57 varieties even though Heinz doesn’t make any of them. Of course, a bicycle shop can work on these, but if you want to do it yourself you will need the right tool. The task isn’t that difficult to do, but it is important to have the right tools. The simplest way to accomplish this is to have a bike shop look at what you have and sell you the right tools. Make sure it fits before leaving the bike shop.

In my own personal experience the only time I have ran into Freewheels is when they installed on an aftermarket wheel such as one with a hub motor. I don’t like Freewheels as they just don’t seem to be made well and don’t hold up. They are troublesome. The last two of them I have had have gone bad just from bad jarring hitting potholes and bumps. Sometimes they can be taken apart partially and cleaned and lubricated to where they may work awhile longer before needing to be replaced. Don’t hold your breath tho as they are not made all that well.

I hope this helpful and informing. If you have a good and trustworthy bike shop it is really nice to have them do the work. If you choose to do it yourself … good grief … I mean good luck.