Not a sprocket only, but you can buy a 23-tooth freewheel that should fit.
All mongoose bmx are horrible! if you are looking for a good bmx bike look at Fit, kink, haro bmx bikes.
mongoose and next
Yes, they Are Bmx Bikes. I Do Not Recommend Them Thought.
i would recommend the mongoose thrive
The Mongoose Rebel Is a 20" Freestyle Bmx Bike
not that heavy
No. a 9T sprocket will only fit a cassette hub, and not freewheel hubs.
It will if you have bmx (or bmx style) cranks.
Yes its a fantastic bike and great for tricks