I have a set that I’ll probably mount up on Wednesday. No ride experience yet.
I will say:
- I tend to run MXP tubeless on MTB wheels for training. The BOS will supplement that / be a set of training wheels for my “A” bike.
- I have PDX and MXP tubulars for racing
- PDX tends to be a little vague when slightly leaned over on loose-over hard conditions when compared to MXP
- PDX tends to have a touch less steep climbing traction when it’s loose / slick than MXP.
- PDX tends to shed sticky mud better than MXP, it also “penetrates” better into soft / wet ground.
- The new Tubeless casing has been great for. Airs up well, holds nicely, no burps.
I mounted the BOS immediately upon getting them (onto a wheel that had 142+ hubs {I cursed when I figured out why I couldn’t get it into the dropouts of my bike}). They mounted up pretty round in the tread. This may help them run a little faster, depending on pressure used.
They look like the grip is going to be great when they can penetrate the ground. I also think they will be a little less vague when partially leaned. I’d expect them to be best in loose over hard and very soft conditions where they can penetrate the ground / dig to a harder suface underneath.
PDX probably better in “moist”. Braking and climbing performance on BOS ought to be better than PDX. BOS will probably excel in “wet mud” vs. “Sticky mud”. Sand performance probably worse than PDX (will churn up more, larger side knobs to catch ruts).
Over all, I think they’ll be a great tire. Perhaps a bit slower rolling, but perhaps more confidence inspiring (which I often find out-weighs a rolling penalty).