the maxxis swampthing 24 by 2.5 is one of your best bets but there are the likes of tioga,nokian and halo that make 24 tyres what would be a good investment to look into is this for just the rear or for both front and rear also if you still want a maxxis high roller 24 try supercycles i think thats the only place what keeps them in 2.5 cheers biddle