cateye velo 8- question

[just4fun]

I'm sorry if this isn't in the correct section but i wanted to ask if any1 uses this and can comment on the accuracy of the calories used function.

I traveled 2.05 miles in 8.57 miles, av speed 13.8mph, max speed 27.0mph

cals burned= 68.4

does this information seem accurate? i thought i would of used a lot less cals in that time.

many thanks