[unrooted]

I've noticed that almost all trail/am bikes come stock with 2.25 tires, is that the first thing you change out???

I've been riding a 29er ht for quite some time and find that the 2.4" tires give me a lot of cushion, would that be unnecessary on a fs bike???

 

[StiHacka]

I've noticed that almost all trail/am bikes come stock with 2.25 tires, is that the first thing you change out???

2.25 is just a number. In my experience, some 2.3 tires are really skinny and some 2.2s are ginormous.

OTOH, smaller casings == lower weight == bikes in showrooms feel snappier than if they came with big ass heavy 2.4 monsters.

 

[jonKranked]

ride what you like, and what works for your local trails.