Join Date: Jul 2008
Location: Sydney, Australia
Bikes: 2006 Lemond Chambery
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Answers to your questions:
1) yes rim tape will come with a new bike, if you can't see the holes, there is rim tape, and there is only really a need to replace it if you see and tears in the rim tape.
2) The weight difference isn't too much to be bothered about, especially commuting, just get the standard ones and save your money, being non ultra light, they will be thicker, and thus have slightly better puncture protection. if you want to protect against flats, I have to suggest a product called tire flats 2. It is basically a strip of flexy plastic you line your tires with. They do add a little bit of weight, but they guarantee against flats from glass, gravel or thorns (not potholes), and in my opinion well worth the extra bit of weight.
3)easiest way, more cost = better quality. Go for well known, such as continental, michelin, vittoria etc. I say look for ones with a bit of puncture resistance, and compounds which reduce rolling resistance. I can't speak for longevity (although I read good things), but a couple months back I switched to Continental GP4000S (with black chilli compound), and the tire flats 2. They replaced stock tires, and first time out I thought jeeze, I can feel the extra weight, but about 10 mins into the ride, I realised how much lower the rolling resistance was, and they grip for dear life around corners. Since changing, no flats whatsoever.
Wow long post sorry, but in summary:
-Go with stock tubes
-Tire flats 2 will be well worth it, especially if commuting
-My suggestion, Conti GP4000S. A bit of puncture protection, much lower rolling resistance, and they grip for dear life.