Hawk speedometer calibration

[green_hawk250]

My tests.

Verified the odometer by the mile posts:

1. On the road = 15 miles; on the odometer = 21.46 km (13.33 miles); Error - 11.1%
2. On the road = 11miles; on the odometer = 15.75 km (9.79 miles); Error - 11.0%
Calculated average correction/conversion coefficient of the speedometer readings to the miles is: 1.4312 (FYI 1 mile=1.609344 km)

Speedometer has been verified with GPS. Actual readings:

35 mph at GPS=32 mph (error = +9.4%)
38 mph at GPS=35 mph (error = +8.6%)
40 mph at GPS=36 mph (error = +11.1%)
44 mph at GPS=40 mph (error = +10.0%)
54 mph at GPS=50 mph (error = +8.0%)

The tire pressure was: front 22 PSI; rear 32 PSI, temperature 24C, tires: Shinko 705