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BD has also given the O1 a downhill performance
upgrade by moving the cable pivot points back, increasing the
activity level of the new binding by some 20%.
The new design also seems to engage the
O-series spring cartridges earlier than in previous models. This
new O1 becomes active right away as the heel begins to come up,
helping the skier apply rear ski forebody pressure at the top
of the turn, making it easier to initiate a strong carved carved
turn right from the start.
The O1 has a base plate made of hot forged
and heat treated aluminium, giving this crucial component mechanical
properties that are comparable to steel, but with a far superior
strength to weight ratio.
We will have a full performance review
down the line but for now we can report that on the basis of
our experience with the O1 on a backcountry tour we took in the
Wasatch last week, the free pivot of BD's new binding saves the
skier significant energy on the uphill, even as compared to the
most tour-friendly, least active bindings currently on the market,
including a cable-less 3 pin models.
Quite honestly, before this week I was
not a big believer in the tour mode concept, even having had
some experience with AT bindings and their more awkward in-front-of-the-foot
free pivot. I just didn't think it was all that necessary for
uphill skinning where little-to-no glide can be had anyway and
where the basic tele shuffle had always seemed to work pretty
well. Not anymore.
The difference in energy spent is dramatic
and it's going to be hard to ever tour again without a free pivot
mode between my boots and skis. However, I still prefer the locked
down mode for sidestepping or for herringboning,
so the ability to switch modes quickly and easily means a lot
to me. |