In 27.5” tyres my 2.6” width ones are significantly bigger than the 2.3 and 2.4” ones.
Then the more aggressive ones with big spikes are obviously taller again.
So my 2.6” Forekaster is pretty big but rolls quite well. 2.6” Slaughter is a bit smaller – more like a 2.4” tyre.
2.6” Magic Mary is flipping enormous and tall. Doesn’t play nicely with a mudguard and a non boost Yari but works well in m boost Pike Ultimate.
The recently bought 2.4” Wild Enduro is pretty big / tall – more so than the 2.5” DHF I had on there before I’d say.
Forekaster and Mary on 25mm internal rims, the DHF / Wild Enduro / Slaughter on 30mm internal rims.