LCD goes up to 199 ;)
Maybe you could do something with the incremental arc as well so it's more than just a backing light? For example, if the digi speedo is reading 60, the 60kph point along the arc is highlighted more than the rest of the backing lights (if it's possible to have an arc of weak LEDs under the cluster). If the digi speedo is reading 100, the 100kph point along the arc is highlighted above the std backing lights. I'm sure LEDs could be wired up in an incremental fashion (to the closest 10kph or 5kph depending on spacing available)
Love your idea so far
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