Here's a compilation of known acceptable tire sizes. Spot has 'officially' said 2.4 is max.

  • Ardent 2.4 - 40mm inner width rim. Not much room left. I also have some good scratches in places where tire has dragged debris through.
  • DHR II 2.4 WT
  • Schwalbe Magic Mary 2.35
  • DHF 2.5 WT (on 29 mm ID rim)