The 10x2.75-6.5 is a well rounded semi-off tyre observed on 6.5" rim models of:
"G Series" such as Kugo Kirin (G2 Max), Kugoo (G2) series and other ODM's such as Mercane & Veloz (e.g. G2 Max).
Often retrofitted to Ninebot Max G2 models and well received as a lower PSI, more rounded, lower pressure (softer) alternative to stock tyres. Prior to this size, often 70/65-6.5's road's were fitted - they adopted similar shape / tread pattern to stock tyres.
Often fitted in lieu of 10x2.70-6.5 on models such as EMOVE Cruiser.
Typical weight: 695 grams.
Nameplate tyre pressure: 36PSI.
Width at bead: 55mm.
Uninflated external diameter 9.8" (249mm), width 3" (75mm) which generally inflates to form 10" x 2.75".
For wider rims, consider the slightly larger EAKIA 85/65-6.5 Semi Off-Road or AoXin 85/65-6.5 DynoSlick. Those 85/65-6.5 tyres have diameter of approximately 10.8 inches (~20mm larger diameter) with around ~10mm more width than this EAKIA 10x2.75-6.5.