bergstrom carbide ??

[Grimm]

I do find it very hard to believe that you gained 6mph just by changing your runners. What runners did you have before?

 

[06apexrtx]

from what i have read you actualy should be loosing mph w/ the doubles. from what i can tell between the bergstrom and shaper bars on my wifes vector, there isnt much differnce she tels me between the 2 set ups.

 

[fasteddie]

I do find it very hard to believe that you gained 6mph just by changing your runners. What runners did you have before?

Maybe just snow conditions? I remember back in the late 80s with my exciter there would be a good 6mph difference from a cold day to a really cold day.