14 votes

Which factor determines the number of teeth in a sprocket

It's all to do with gearing and matching the optimum rotational speed of the engine with the wheels (put simply). Imagine you have an engine which develops it's peak power between 3500RPM and 5000RPM....
Steve Matthews's user avatar
5 votes

Increasing rear sprocket size for torque gains, will a dyno tune be required?

No, you do not need to remap your ECU This doesn't have anything to do with your air fuel ration and ignition timing. You are simply changing the gear ratio for your final drive. Making the ...
DucatiKiller's user avatar
  • 32.9k
5 votes

Which factor determines the number of teeth in a sprocket

It all has to do with the distance traveled for 1 input revolution. On a bike, there are 3 factors. The front gear, the back gear, and the tire diameter. The ratio of teeth on the rear gear to the ...
rpmerf's user avatar
  • 8,403
4 votes

Which factor determines the number of teeth in a sprocket

The number of teeth in a sprocket is constrained by the radius of the sprocket. Assuming a standard link distance (for bicycle chain) of 1/2 inch, the radius is some number based on n where n is an ...
user19092's user avatar
4 votes
Accepted

Increasing rear sprocket size for torque gains, will a dyno tune be required?

Changing your rear sprocket won't give you more mid range or change the engine power curve in any way. It will alter the torque at the rear wheel at all RPMs. The bike should accelerate faster through ...
Roger Mellie's user avatar
4 votes
Accepted

Possibility of crankshaft sprocket slipping on crankshaft snout

I'm not sure I am in agreement with "most" in the other answer, some definitely but I've never seen any stats on this. I do know that some engines are designed so that the crank timing gear ...
jwh20's user avatar
  • 12.1k
4 votes

Possibility of crankshaft sprocket slipping on crankshaft snout

Most crank sprockets are fixed to the crank with keyways afaik. It is also easy to have a press fit such that they won’t move, but then pullers are needed for removal. An interference fit can be ...
Solar Mike's user avatar
  • 34.6k
1 vote

A sprocket, sprocket-wheel or chainwheel is a "profiled wheel" with teeth that mesh with a chain, track or other perforated or indented material

I assume you know what a wheel is, so a "standard" wheel is, by definition, unprofiled. That means that its outer diameter is smooth and makes a circle. When you add a profile to it, it ...
jwh20's user avatar
  • 12.1k
1 vote

How do i tighten my sprocket with these bolts?

You cannot actually tighten it to the shaft, those 2 bolts just hold the retainer plate, this is all that keeps the sprocket from coming off. Once the plate is removed you can slide the sprocket off ...
Moab's user avatar
  • 7,990

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