Freewheel mechanism used on scooter rear wheel assemblies.
This is not used as a chain sprocket. The freewheel mechanism attaches to the larger chain drive sprocket to allow the rear tire & wheel assembly to spin in reverse, so you can coast while riding your scooter.
Yes, this should work on a 3-speed bicycle hub, as long as the mounting set up matches. We'd recommend reviewing the mounting hole specifications listed under the "Specifications" section of this item page and comparing it to your bicycle hub to see if it would fit.
What's the width at its widest point?
The width at the widest point is 3".
Inside diameter?
The inside diameter is 34mm.
What is the material of this product?
Unfortunately, the manufacturer has provided us with limited information. All of the information that we have regarding this product is listed on the item page. We apologize for any inconvenience.
Is this right hand/positive thread or Left hand/ reverse thread...
This Rear Freewheel Assembly has a right hand/positive thread.