Like the Berg 70 degree motor and the 449/511 Yamaha pushes the mass centralization approach...

center of mass is relatively in center all ready by virtue of the standard config of our bikes,,, help can be made by losing weight at farthest reaches of all the lever arm lengths of the machine. high weight can by lost with an earthx battery, very crucial tail weight with a shorter/lighter muffler ( this is probably the most dramatically noticible mod to most riders loss ), unsprung weight at both ends as well-wheels and tires are far away from center mass, light as you can....alot is about practicality. light handlebars (normal ones) vice heavy types like flexx (which i happen to like) for example. my tuppence. working with what you have.

At least mine seems to get lower every year