Question for those experienced with racing. I am taking part in my first race, so please forgive the ignorance here. The race is the a 63 mile road race, with an expected temperature of around the mid-90's (in the shade, so it will feel hotter in the sun an out on the road.
I am running Michelin Pro 2 Light tires, which are 700 x 23 sized tires. My current tubes are 700 20/25. However, I purchased some ligher weight racing tubes, but they are sized for 700 18/23. Now, I know that technically, the race tube is sized tto fit a 700x23 tire. But my concern is durability in the race. I have no extra wheel set, so if I flat, I am done. My question for you guys is this.
(a) Should I even use a race tire, or due to the lack of a quick wheel change, should I stick with Continental Gatorskins?
(b) Do I run a greater risk of flatting because the race tube just barely is sized to fit my Michelin Pro 2 tires?
(c) Should I use the more robust tube, for durability, especially given the extreme heat of the race?