Hello, guys !

How to calculate belt's length correctly?
I have the custom frame, and building the bike from zero.
maybe, have some program-calculator for it???

Thanks !

 

Don't know, but here's my guess. With the wheel in place, use a piece of string to loop around the sprockets. Allow a little bit for slack. Measure the string.

 

to Uncle Scroodge:
I think about this method, but, I don't know the length of one tooth of the belt. Maybe, smbd have any science formulae for this action
;^)
I dont want to spend pair hundreds dollars for wrong belt.....

 

Here is one formula, plus it saves me tons of endless typing babble to explain it.

http://www.wisc-online.com/objects/i...objID=ENG21906
Ron

 

Use rbabos method to find the total length of belt. I think a harley drive belt is 14mm from tooth to tooth. Convert 14mm to inches and divide that into the length of the belt for the number of teeth. .03937*14mm=.551

 

to rbabos: Thank for the link. very good program.
to ajayrk: The tooth length is 14 mm exactly?
The situation is - I have no HD belt, and in our city only some old WLA Harleys with chain.... I cant measure tooth's length
Maybe, anybody know exactly step of the teeth ???
I will be very gratefully !!!

 

Unless someone has a vernier and goes out to measure their belt thichness, this will give all needed info to find the answer you want. It is a long read, however. Harley uses 14 mm. Convesion for inch to millimeter is X 25.4, and devide going the other way.
http://www.hoverhawk.com/polychain.pdf
Ron

 

to rbabos: Thank you, Ron ! I think, this is what I seek !
Have a food for my mind

 

My center distance is 14.5" I'm using 8 mm. The front pulley is 44 teeth.And primary is 68 teeth. I'm mating my 68 XLH to a Revtech Softail transmission. I can buy the primary setup but it comes with a belt that I won't be able to use. So I'm going to have to purchase a custom length belt. Where would I be able to buy one?

 

If you can tell me the tooth count of the front and rear pulleys and the center to center distance between them, I should be able to get you the tooth count and length of the belt.