Well Jack, The specs for my series DC motor says that the rpms go only to ~4,000 at 72 volts, although I have yet to measure it. Most of the folks use a ration more on the order of 6 to 1.
- Mike B. -----Original Message----- From: Jack Knopf <[EMAIL PROTECTED]> To: ElectricMotorcycles <listserv@electricmotorcycles.net> Sent: Sat, 2 Aug 2008 6:46 pm Subject: Re: [ElectricMotorcycles] [SPAM] Re: finally Is a 11 to 1 ratio too large?? The motors can go 8,000 rpm or more.? What is the Killacycle's ratio?? Jack.? ----- Original Message ----- From: "Paul Compton" <[EMAIL PROTECTED]>? To: "ElectricMotorcycles" <listserv@electricmotorcycles.net>? Sent: Saturday, August 02, 2008 3:44 PM? Subject: Re: [ElectricMotorcycles] [SPAM] Re: finally? ? >> I believe that some of the excess noise on my bike is related to the >> metric chain not lining up on the small? >> american sprocket quite right. I guess what I am aluding to is a believe >> that a #40 sprocket does not mate well? >> with a 5xx or 4xx chain.? >? > A 400 or 500 series chain is not metric, it's a motorcycle version of > Imperial or British Standard chain.? >? > A 420 chain would be 4 times 1/8" pitch (ie. 0.5") and 20 times 1/80" wide > (1/4"), however American and Imperial chain standards differ as to the > roller diameter; American chains have smaller rollers (except at 5/8" > pitch).? >? > There is a completely wierd chain size made for racing Karts, which is the > 219. Logically it would be 1/4" pitch, but instead, it's the completely > oddball pitch of 7.35mm!? >? > Paul Compton? > www.evguru.co.uk? > www.sciroccoev.co.uk? > www.batteryvehiclesociety.org.uk? > www.morini-mania.co.uk? > www.compton.vispa.com/the_named? > ?
