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Yellow Box Speedo Recalibrator

Yellow Box Speedo Recalibrator v4
The Yellow Box is a speedometer recalibrator for motorcycles, cars and trucks.
It corrects for the usual stock speedo errors and gearing change speedo errors etc.

The Yellow Box is easy to use and remains on the bike correcting the speedo
in real time. Installation is a simple 4 wire splice connection or quick plug-n-play.

The speed correction can be easily changed at any time to compensate for tyre wear,
MPH-KPH or KPH-MPH conversions needed on the road while travelling.

Features of the Yellow Box v4 -- Model No. YB4

Corrects both the speedo and odometer by the same percentage/correction ratio

Speedometer correction range; -50% to +100% (1:2 to 2:1 ratio range)

Fine correction adjustment; 0.5% steps

KPH-MPH and MPH-KPH speedo conversion

Bright LED displays switch settings and test modes

System testing on power-up, inbuilt input and output tests

High-speed microprocessor accuracy, instant response, no speedo lag

Fully digital, exact, instant adjustment

Conveniently powered from speed sensor power

Power supply voltage; 5 to 16 volt

Very low power consumption (20mA)

Tiny size; 37 x 62 x 14mm, weighs only 32 grams

Rugged water and vibration proof encapsulation

Strong mounting hole and connector strength

Compatible with most modern motorcycles, cars and trucks

Legendary reliability and 10 year replacement warranty!

How it works
To learn more about speed sensors see Using and Installing instructions.

The Yellow Box receives electrical pulses from the vehicle speed sensor.
The high-speed microprocessor (tiny computer) inside the Yellow Box uses
our proprietary digital software to precisely correct the signal pulses.