April 4, 20179 yr On 16/02/2014 at 3:46 AM, billyt said: If I remember correctly when these mapping switches started appearing on trials bike we could not feel any difference. We hooked up a timing light (to a Beta)and played with the switch. It was a long time ago but I think nothing happened with the timing changing until approximately 4000 RPM or high in the mid-range. Cheers BillyT True. Had done this in my GasGas enduro and map start changing something after 3000rpm. https://youtu.be/XkJQsVgMTLE
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