I have a deposit (refundable) on a YFZ450 but I'm considering switching to a 450R for the smoother power. I don't race but I do trail ride aggressively. I really love the look, feel and power of the YFZ but I still want some torque...not a lot but some. I've heard stories about people stalling the YFZ when riding at low speeds...not that I really ride that slow that that would bve a problem but still.

Has anyone weighted their flywheel for extra torque? How does it work? any feedback would be great. thanks...