@Protomech: Good info,
@Protomech: Good info, thanks.
It occurs to me that, in addition to the transmission, there are a couple of other notable differences between the Zero and Brammo: the Zero is air-cooled and the Brammo is liquid-cooled, and the Zero has a belt (super quiet!) and the Brammo has a chain. I really like the Zero, but I sense the Brammo is a bit more serious. Again, the question is how much seriousness costs.