The chainring by the pedals and the sprocket(s) by the rear wheel.
To replace a bike sprocket, you will need to first remove the chain from the sprocket. Then, use a wrench to loosen the bolts holding the sprocket in place. Once the bolts are removed, take off the old sprocket and replace it with the new one. Secure the new sprocket in place by tightening the bolts. Finally, reattach the chain to the new sprocket.
The purpose of a sprocket in a bike's drivetrain system is to transfer power from the pedals to the wheels by engaging with the chain, allowing the rider to propel the bike forward.
To remove a bike sprocket, you will need to use a chain whip tool and a cassette lockring tool. First, remove the wheel from the bike. Then, use the chain whip tool to hold the sprocket in place while using the lockring tool to loosen and remove the lockring. Once the lockring is removed, the sprocket should slide off easily.
Chain is on the smallest sprocket on the crank and on the largest sprocket on the rear wheel
If by "normal" you mean a bike with one chainwheel at the front and one sprocket at the rear, then it will have either a 1/8" or a 3/32" width chain.
Sprocket and chain and what?
You might have to either lengthen or shorten the chain, depending on if you're getting a bigger or smaller sprocket.
The bent sprocket is guiding the chain diagonally causing it to be unparalleled with the front sprocket, you will either need to purchase a new rear sprocket or find a way to bend the rear one back straight
To put the bike chain back on a kid's bike, follow these steps: 1. Place the chain back onto the front chainring and rear sprocket. 2. Pull the rear wheel back to create tension in the chain. 3. Use a chain tool or your hands to reconnect the chain link. 4. Test the bike to ensure the chain is properly aligned and functioning.
First of all, the rest of the cycling community calls the thing by the rear wheel for sprocket, and the thing by the pedals for chain ring or chain wheel - but I understand what you mean. And only you can answer your original question, as it depends on how you want your bike to behave. If you want more top speed - go for a smaller sprocket. If you want quicker starts - go for a bigger sprocket. If you don't have one - read up on the specs for a bike for the type of riding you want to do - then get the same for your bike.
No way to tell, as it will be different depending on bike size and sprocket tooth count. Bike chains are always sold overly long and are then cut to size.
On the front it's usually called a chainwheel or a chainring, on the rear it's either a sprocket, a cassette, or a freewheel.