Topic: Sprockets size

[bert96]

 Someone can tell me the diameter size of  a 48T and a 43T ( for a cb750k)rear sprocket?

Bert

[Alan F.]

I usually refer to the JT Sprockets catalog and while they do list a lot of good measurements, they don't list diameter.

OK, after a minute thinking and a short search, 530, 525 and 520 chains have a length per link of .625" from pin center to pin center.

48 x .625" = 30" circumference.

43 x .625 = 26.875" circumference.

After a quick search since I didn't remember the formula, D= C/pi.

For 48t dia= 9.55"

For 43t dia= 8.55"

Cheers Bert!

[bert96]

  Thanks!

I'll keep these informations.


Bert