As I understand, "brake" horsepower is measured at the crankshaft... thus making a rear wheel driven dyno show a lower number. * * * * * * * * * * * * * * * * * * * The ST/RS Mailing list is sponsored by Jack Lilley Ltd. http://www.TriumphNet.com/st/lilley for more info http://www.TriumphNet.com/st for ST, RS and Mailing List info =-=-=-= Next Message =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=