Tacho difference Elmoto HR2
When You drive 5km according to milestones, the odometer shows 5560m. 1 km on the display are 899m. It was not possible to check the speed.
It's necessary for a speed test to drive some km with constant speed. To be able to do this, it's necessary to look always on the tacho, but this is not possible at sunshine.
Here to compare the tacho at sun and in the shadow of a tree.