Thanks for the input everyone!

* I've checked the whole bike for "drag" except the wheel bearings,
I'll give those a look.

* I need to confirm that my body position is the same between bikes.
I tried to set them up as close as I could but it's possible one or
both configurations have drifted from the original setup after dozens
of tweaks over the last year.  I particularly need to look at saddle
setback given that the bikes have different seat tube angles.

* The bleriot probably weighs a few pounds more than the quickbeam,
though given my own weight I don't think that would make much of a
difference.  Even if the weight difference was 5 lbs, that would still
only be about a 2% difference in total weight.  The efficiency
difference between the 2 bikes feels well over 2% to me.

* I ride with the hetres as high as 60/65 psi, usually closer to
50/55.  Yesterday I dropped them to 45/52 (based on my guesstimate of
15% tire drop from the chart in VBQ) and noticed a pretty substantial
difference (mostly improvement).  Today I did some hill climbing on
the way to work.  I found myself exhausted like I was fighting against
both the bike and gravity.  The tires feel squishy to me when I'm
standing which might be why climbing while standing and accelerating
from a stop feel "inefficient."

Aside from the hill climbing this morning, I've been riding the
bleriot in the same gear that I use on the quickbeam for around town
riding.  The bleriot still feels more difficult in this gear but I
need more time in the saddle to really confirm that.

* The quickbeam uses 32mm paselas with tourguard which I don't
consider to be racing tires, so I don't think it's a completely unfair
comparison to the hetres.  The paselas feel like the perfect combo of
comfort and speed for me, I don't get that squishy feeling when I
stand (which I frequently find myself doing on the quickbeam) but the
tires are plenty comfortable even for long distance riding.  If
panaracer made 650b x 32 paselas I'd buy a pair in an instant.  Maybe
I just need to take the plunge on a pair of cypres since they're
probably the closest I'll find to paselas for 650b.

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