Here are the measurements I currently use on my SP1F with the YRS, along with some pictures.

  • 55 mm: from the bottom line of the windshield to the center of the front hole
  • 75 mm: rear height
  • 7 mm: front lip height
  • 4.6 mm: front lip thickness
  • 69 mm: front fender height
    • These values give me good rotation and very good braking stability.

    Source:

    M. Charvin