140/90/17 or 150/80/17 dual sport tires?

Discussion in 'Equipment' started by ChopperCharles, Aug 14, 2019 at 12:16 PM.

  1. ChopperCharles

    ChopperCharles Long timer

    Joined:
    Jun 7, 2006
    Oddometer:
    3,660
    Location:
    Durham, NC
    my bike comes stock with a 140/80/17. The speedo is off a bit and the gearing is a little too low, so I was thinking s slightly larger rear tire would fix that without having to replace expensive belts and pulleys. But... it doesn’t seem like dual sport tires are made in those sizes. Just street tires. Why is that?

    Charles.
    #1
  2. Panther6834

    Panther6834 Adventurer

    Joined:
    May 6, 2018
    Oddometer:
    68
    Location:
    US
    First, you didn't specify what bike you're considering it for. I mention this because, most bikes have the Speedo sensor, & speed sensor rotor, attached to the front wheel...not the rear.
    #2
  3. ChopperCharles

    ChopperCharles Long timer

    Joined:
    Jun 7, 2006
    Oddometer:
    3,660
    Location:
    Durham, NC
    SCR950/Yamaha bolt. It’s similar to the R1 sensor which reads off the front sprocket. Except it reads off the front drive pulley. Stock rear tire is a 140/80/17. A 150/70/17 is also available, but is actually smaller in overall diameter.

    Charles.
    #3