Harry's GPS Suite Forum

Hey Guys,

I ride a Yamaha Yzf-R1
and it has 2 drive ratios

Primary Reduction Ratio 65/43 (1.512)
Secondary Reduction Ratio 47/17 (2.765)

Gear Ratio – 1st Gear 38/15 (2.533)
Gear Ratio – 2nd Gear 33/16 (2.063)
Gear Ratio – 3rd Gear 37/21 (1.762)
Gear Ratio – 4th Gear 35/23 (1.522)
Gear Ratio – 5th Gear 30/22 (1.364)
Gear Ratio – 6th Gear 33/26 (1.269)

How can I set it?

Multiply the primary and secondary ratio and enter it as drive ratio.

- Harry