Can Crr really be this high?

[minus10]

Having upgraded to an iPro from iSport I decided to redo my cal ride and add some coast downs in. The motivation for accuracy is so I can match as closely as possible my ride partner with his iAero which he has cal'd properly.

I followed the instructions to do a full measure of CdA and Crr. Fast start, cal ride (10.7 km), sunny cloudless day with very light wind, no traffic on a mettled surface. Set Racr Est Fric NO, did 10 coasts over same ground.

Height 173 cm, weight 73kg, total with kit and bike, 87 kg (two full bottles), Trek 1.5 running Bontrager Race Lite hardcase tires. These tires have done 2500 miles this year and have no tread (they are made slick). 700x25 (2105 mm circ). They are kind of grippy I guess putting a big surface area down. I ride on the hoods.

The Fric numbers from the coasts look very consistent.

The profile figures I get are:

Aero 0.418, wind scale 1.036 CdA 0.403
Fric 11.258 Ride tilt -0.3 Crr 0.0102

For comparison my simple iSPort cal with Est Fric gave:
Aero 0.408, Wind scale 1.266 (windier cal ride) CdA 0.323 Fric 8.244, Ride tilt -0.4, Crr 0.0055 Cal weight 88kg.

I've stitched together the ride file from door to door with the cal ride and coasts in the middle. Jumped on the pedals at the end to get a feel for max power and hit 830ish.

Profile attached as well.

The question is, that Crr look awful high. Does this cal look outlandish?

Good Bontrager race tires have Crr 0.004, and I have read in road conditions you can add 50-100% to the lab measured value. These are not good race tires, they are hardcase for puncture resistance (English roads can be bad) and have no tread even when new.

Any insight welcome.

Paul
p.s. yes my heart is a bit weird. 45 with max HR 205 lthr 192. Odd I know.