I need to replace both front and back tires, as I believe they are originals…..and are starting to wear smooth.

OEM Carlsile front 24x8x12 and back 24x11x12.

I drive all dirt roads and some rough terrain. No mud or rivers.

What changes can I make to sizing without buying new rims or adding spacers.

I was thinking about 25x8x12 front and 25x10x12 rear….as this may make steering a little easier and make the quad look better (higher).

What brands are recommended and is the sizing ok for the current rims?

Thanks