10x2.125 {-6.6} Tyre (tube type) [Yuanxing CY-344 | Ninebot Yuanxing CY-327]

• The 10x2.125 {-6.6} Tyre (tube type) [Yuanxing CY-344 | Ninebot Yuanxing CY-327] is the original factory stock size tyre on:
  • InMotion (stock tyre is Yuanxing CY-344):
    • Climber (AKA Commuter Climber).
    • Air and Air Pro Front.
      • Rear of Air series models is a solid/foam tyre, this pneumatic tyre can be retrofitted).
  • Ninebot (stock tyre is Ninebot branded Yuanxing CY-327):
    • F Series models such as F20, F25, F30, F40 & F65.
    • D series such as D18, D28, D38.
      • F2 series (including Plus and Pro) require 10x2.50 {6.5} / 60/70-6.5 tubeless tyre.
• Typically paired with Yuanxing 10x2.125 tube straight valve.
• Typical weight: 550 grams (Yuanxing CY-344), 518 grams (Yuanxing CY-327 Ninebot branded).
• First set of product images show the Yuanxing CY-344. Second set show the near identical Yuanxing CY-327 Ninebot branded tyre with orange/white branding on one side. The only notable differences between the two is the branding, weight and inclusion of bubble wrap. CY-344 is produced with or without white line.

Notes:

1. An aftermarket alternative tyre from ULIP is also available which offers a different tread pattern. Shown below with same dimensions and slightly heavier, the ULIP has optional self-healing liner variant for tubeless fitment in Ninebot models.
   
   
2. How to change the inner tube video from InMotion for the Climber. Climber was marketed as InMotion Commuter Climber in Australia through Scooter Hut.
3. There is some ambiguity regarding the rim size on these makes/models as 6.6" rim tyre nameplates do not have a suffix such as -6.6. ULIP market this size as -6.6 which is appropriate and reflective of the 168mm internal tyre diameter. Often -6.6 tyres will be inappropriately referenced as -6.5 or -7 (rounded) such as on Climber in this Reddit discussion which includes advice from InMotion. The InMotion Global Air Pro disassembly video (at 2 minutes) shows an Air model with Yuanxing DY-344 60/70-7.0, which is only found on Xiaomi 4 series models, suggesting there may have been cohort of builds with 7" rims. Check the size on your existing nameplate. Air Pro rear is a factory solid. Often keen InMotion Climber owners will "shave down" their rim to accommodate tyres designed for 6.5" rims tyres.