With a 26" wheel and a 30t ring you're going to want at least a 42t low cog if you're riding Shore-style terrain with steep climbs and probably larger if your NX derailleur will clean it.
Or you could always do a manual 2x if your crank is a 2x crankset. Then there's an option of a 22t or 24t grannie when the trails get really steep.
We're a ways off, but when my grom is ~10 I can definitely forsee a 26t front ring with an 11-42t cassette or even an 11-46t.
April 15, 2021, 9:43 p.m. - Andrew Major
With a 26" wheel and a 30t ring you're going to want at least a 42t low cog if you're riding Shore-style terrain with steep climbs and probably larger if your NX derailleur will clean it. Or you could always do a manual 2x if your crank is a 2x crankset. Then there's an option of a 22t or 24t grannie when the trails get really steep. We're a ways off, but when my grom is ~10 I can definitely forsee a 26t front ring with an 11-42t cassette or even an 11-46t.