they look sweet... and they are a bit pricey. are you geting them??
Decrease Friction
Increase Speed
Increase acceleration
Increase run times
Decrease heat
It can't do much of this tho... maby 1 mph or a little more but all these factors couldnt increse or decrease that much to make that much of a difference...
I honestly think acer is just a rebagger. I mean thats all they do with the power poles and there batts and stuff. The chick with the DD in there batt adds is nice to look at though.
As far as bearing I think everyone agress Boca is the best but man they are pricy. Honesty I saw the acers on sale a while back I though for 1.50 a bearing which is a heck of a deal for their nice shielded ones. X