calculating sprocket RPM is very easy if you know what the RPM of the drive sprocket is. If you know that then it is a simple fraction problem. If you make the drive gear the numerator or the top part of the fraction and the driven gear the denominator or the bottom part of the fraction (DRIVE/DRIVEN) I.E. if the drive sprocket has 25 teeth and your driven sprocket has 100 teeth (25/100) that will reduce to (1/4) or a 4:1 ratio. So if your drive sprocket is spinning at 1000 RPM then your driven sprocket will be spinning at 250 RPM. You can plug your specific sprocket tooth count into that equation and come up with the right answer.
For a pulley, it is driver RPM x driver diameter = driven RPM x driven diameter. Keep in mind that the diameter you should use is the diameter where the belt is riding in the pulley. For instance, an A belt in an AB pulley will ride lower in the pulley than it would in an A pulley. For sprockets, the formula is the same, but replace the diameter with # teeth. It looks like this. driver rpm x # teeth of driver sprocket = driven RPM x # teeth of driven sprocket
you need a ratio of 23 to one hence 230 teeth
20 rpm
depends on your clutch, rpm, tire, and tooth gear on sprocket and driver (clutch) lets just say if you have a motor pulling 3600 rpm with a 12" in diameter tire and a 45 tooth gear and 12 tooth sprocket you can get to 34mph but hills and wind resistance is a big factor in it to so i can vary.
320 rpm.
Measure the rpm & calculate the torque as power divided by angular velocity
== distance x time== speed ==
a large sprocket
You can calculate the cost of your energy savings when you reduce the rpm's from 3450 to 2350, by dividing 3450 into the cost of fuel. This will give you a fuel costs per rpm. Take the cost per rpm and multiply it by 2350. Subtract this number from your original cost and you will have your energy savings.
Nope, too much power, will blow the engine. the text above is retarded how can changing the engine blow the engine if a 70cc engine will fit it will work what he's saying is that the rear sprocket is to small. You would have to get a bigger sprocket so the engine won't run at high RPM's when you take off. With the bigger sprocket, the engine will have to work a little more to get the wheel to turn.
the smallest sprocket is the highest gear.
RPM is an expression of rotational velocity. It is the number of revolutions a rotating object makes on its own axis in one minute. RPM is used to calculate horsepower, linear velocity, gear ratios, and tangential velocity. The formula for roller rpm = Distance / Circumference.