Originally Posted by
lnanek
That's an odd pressure to be running them at. Recommended is 105:
> Recommended Air Pressure: 105 psi
https://tokyobike.co.uk/products/pan...71-cs650-sport
Kind of an ancient hold back from before people knew wider tires with lower pressure were faster and more comfortable. Personally, 15mm internal rim width is kind of rare now too.
The bike is light and she is small for 8 years old at 50 pounds, the Silca Inflation site recommend 74 front and 76 back for a 75 pound rider/bike in our Airpark with excellent roads.