The following measurements apply to the seatpost on your Yuma 3:
Seatpost diameter: 31.6 mm
Seat clamp diameter: 34.9 mm
The maximum seatpost insertion depth depends on the wheel size:
24″ → max. 250 mm
26″ → max. 255 mm
Note: Always observe the minimum insertion mark on the seatpost shaft and never exceed it. If you're unsure, a specialist workshop or our Customer Success team can help.