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C02 / spare tubes / gell tubes(3 posts)

C02 / spare tubes / gell tubesJMG1000
Sep 21, 2002 11:44 AM
A while ago, a poster asked what people carry with them in case of flats -- most folks carried a co2 inflater, a few spare cannisters of c02, a tool kit, maybe a patch kit, and maybe a couple of spare tubes. The question I have is would it be reasonable to install those gell tubes on your bike and leave all the other stuff at home? The weight difference has got to be equivalent...and it would be nice to no longer get flats due to the gell tubes. Or is there something about weight on the wheels that makes it worse than weight on another area of your bike?
rotational inertianiteschaos
Sep 21, 2002 4:46 PM
The most effective place to lighten your bike is on your wheels. Not only do you have to carry the wieght up hill, but you also have to spin it up to speed as well. That is why people are willing to pay a premium for light wheels.
Sep 21, 2002 5:19 PM
In addition to the tire being the worst place to have extra weight, slimed tubes are not flat proof. If you get a cut, the stuff can still ooze out. Such a cut could be booted with paper money or Tyvek and a new tube mounted, but if you're running slime, you're busted. Plus, a slimed tube leak means a heck of mess inside the tire, so if you want to replace the tube you've got a problem. Slime tube fillers have been around since at least the '40s. They experience a brief surge in popularity because few people remember the problems, but they never catch on. By this time, it's hard to argue that it's a good concept that has just never been executed properly.