If a 20-tooth sprocket turns at 10 RPM, the 10-tooth sprocket will turn at a higher speed due to the difference in the number of teeth. The relationship between the RPMs of the two sprockets can be determined using the formula: RPM1 × Teeth1 = RPM2 × Teeth2. Plugging in the values: 10 RPM × 20 teeth = RPM2 × 10 teeth, we find that RPM2 = 20 RPM. Therefore, the 10-tooth sprocket will turn at 20 RPM.
well if you have a 8 tooth rear driver you will need a 23t sprocket, if u have a 9 tooth rear driver you will need a 25t sprocket, if u have a 10 tooth rear driver you will need a 28t sprocket, and if you have a 11 tooth rear driver you will need a 30t sprocket
17 tooth front, 42 tooth rear, 110 link chain, size 530
External diameter, internal diameter, and tooth count.
Each little piece that settles between the chain link is called a tooth, so consider the teeth on it as a sprocket. There are fixed gear or a free types, both connect to the rear hub on the wheel.
120 chain link
197.5km/h
There isn't much need to discuss tooth size as such. The important things are which width of chain the sprocket is intended for and the tooth count. Tooth count decides which gear ratio you get.
a 25 tooth sprocket will fit on a 9 tooth driver
For a TMX 155 with a sidecar, the ideal sprocket combination typically involves a 14-tooth front sprocket paired with a 40-tooth rear sprocket. This setup offers a good balance of torque and speed, suitable for handling the additional weight of the sidecar. It's essential to consider the riding conditions and personal preferences, as adjustments can further optimize performance. Always ensure proper chain length and tension when changing sprockets.
Just a little short of 1:5
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.
There's no way of telling, it depends on how strong you are and how you want the bike to behave. You can swithc between quick off the line, or good top speed by changing the gear ratio.