20 pitches - SV650.org

madEG · 06-04-06, 08:19 PM

I understand the service limit for a chain is up to 12.6 inches (319.4mm) for 21 pins.

Might anyone know what the beginning figure is? Meaning, on a brand new chain, what is the length of this distance?

I am curious as to how much my chain has already stretched...

Thanks.

Sid Squid · 06-04-06, 08:40 PM

Well it's a 5/8" pitch chain, so 5/8 x 20 = 12.5".

This tallys, generally, with the rule of thumb that says that a chain is duffed when stretched by 2-3%

madEG · 06-04-06, 09:35 PM

Thanks Sid.

06-04-06, 08:19 PM	#1
madEG Member Join Date: Sep 2003 Location: Arden on the Severn Posts: 71	20 pitches I understand the service limit for a chain is up to 12.6 inches (319.4mm) for 21 pins. Might anyone know what the beginning figure is? Meaning, on a brand new chain, what is the length of this distance? I am curious as to how much my chain has already stretched... Thanks.

06-04-06, 08:40 PM	#2
Sid Squid No, I don't lend tools. Mega Poster Join Date: Jul 2003 Location: Skunk Works, Nth London Posts: 8,680	Well it's a 5/8" pitch chain, so 5/8 x 20 = 12.5". This tallys, generally, with the rule of thumb that says that a chain is duffed when stretched by 2-3% __________________ If an SV650 has a flat tyre in the forest and no-one is there to blow it up, how long will it be 'til someone posts that the reg/rec is duff and the world will end unless a CBR unit is fitted? A little bit of knowledge = a dangerous thing. "a deathless anthem of nuclear-strength romantic angst"

06-04-06, 09:35 PM	#3
madEG Member Join Date: Sep 2003 Location: Arden on the Severn Posts: 71	Thanks Sid.