Hello Paul, It seem that you are the person that can clarify this for me.
First do you concur that there is a mismatch between a standard electric motor #40 (front) sprocket and the 4xx and 5xx chain sizes? Second if we cannot change the #40 end then what size motorcycle chain should we use (assuming that we can cut a large rear sprocket to meet our needs? Third, I note that modern sport bikes like the Yamaha YZF600 use a very small modern chain like the 520. It is not as wide. I do not know about the pitch but it seems smaller than a 525 or 530 to my eye. Is this true? - Mike B. -----Original Message----- From: Paul Compton <[EMAIL PROTECTED]> To: ElectricMotorcycles <listserv@electricmotorcycles.net> Sent: Sat, 2 Aug 2008 2:44 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 ?
