Best tubes for 700x23c?

[BleeckerSt_Girl]

And to the person who said they are now only inflating tires to 105- you are actually at a greater risk for flats if you underinflate your tires then if you inflate to maximum pressure, for both pinch and puncture. The softer the tire, the easier it is for something to go into it. You are also loosing effinciancy with each pedal stroke because of rolling resistance. So besides greater risk of flats, you are creating a much harder, less efficient ride.

The only time my tires aren't at 115 or 135-140(tubulars) is if I am at a crit with bad road conditions in the turns. Then I know I am going to need to let some air out. Otherwise, if just riding on paved roads- there is no reason to have them underinflated.

Not everyone agrees with this view.

[Running Mommy]

Conti Grand Prix 4000's have been a godsend for me! Living in the desert we have lots of "pokey things". I've had 2 flats in three + years.

[BleeckerSt_Girl]

I have Continental Grand Prix 4 Season tires (700x25) and am very impressed with them. Can't believe the sharp jagged rocks I've had to go over a lot lately and they didn't even blink. The streets of our town are being torn up and sewer pipes replaced everywhere, and Boy it's a nightmare of nasty sharp rocks and debris scattered so thick on the street you cannot dodge them- you just cringe and pray and go over it. Rocky gravel would be better since your tire could sink into it a bit. I hate it when you catch just the edge of a sharp rock and it gets shot out from the side of your tire like a bullet with a creepy snapping sound like a slingshot. Aghhhh!! But these Continentals are seemingly taking it all in stride.