Spalding Cyclometer calibration?



J

John Smith

Guest
Spalding Cyclometer: Red 'RESET' triangle on left, yellow
'MODE' triangle on right. Back has 'SIZE' pinhole on left,
'SET' pinhole on right. SR44/G13 battery.

Does not seem to fit into the six standard calibration
schemes.

A 26 x 1.95 tire (circumference 80 inches) registers
somewhere around a 130 calibration number.

Does anyone know the actual calibration formula for
this model?