YZF R1 +1/-2

Question

Thinking about doing a +1/-2 on my 15. How would I go about correcting the speedometer to read properly

3 years 0 Answers 603 views 0

Answers ( No )

    0

    Too low i guess…just minus 1 front is enough..no effect on the speedo..u still can get about 300..

    0

    Flash tune

    0

    I think you have your ratios around the wrong way. You want -1, +2…

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    It’ll read correctly on the 15-16. Also you sure you want +1-2 and not -1+2. As in down 1 up front and up 2 in the rear

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    You don’t have to worry about any speedo healer. Speed is read from the ABS ring on the wheel.

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    -1/+2 is perfect gearing for street.
    Zero effect on speedo as it’s read off the rear ABS sensor. Unlike earlier models that are read off the output shaft.

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    What’s the estimated top speed on a -1+2? I always thought that was way too low but so many people are gearing down their liter bikes.

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    So if it’s a 2015 r1 it has wheel speed sensors no need for anything. Just change the sprockets and ur good.

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