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i was going to go tubeless but decided against the faff so i'm changing to lightweight innertubes to save a bit of weight. any recommendations?
Carry spares
How much weight does a lightweight inner tube save?
Mine are standard, but pretty light compared to the weight of the bike...
get some Eclipse tubes if you want them light
http://www.eclipse.ch/new/Tubes.html
Been comparing weights just on the halfords tubes and they vary between 75g and over 200g. If I save 120g per tube that's a 1/2 lb saving.
michelin latex around 123gr good puncture resistance only let down you need to pump them up every two days, i would rather do that than go tubeless alot less effort, also easier when swapping tyres and a lot lighter than using slime tubes
I have a pair of Maxxis fly weight tubes same as these http://www.chainreactioncycles.com/Models.aspx?ModelID=17342 , fitted to wheels but never ridden, you can have them for £12.50 posted. My email is in my profile if you want them?
Either go latex or tubeless (or maybe those Swiss things). They're pretty much the only lighter options that won't make you feel like a total mug after the umpteenth random puncture you'll get for no explicable reason with light butyl ones (the real reason being that they're pish, but you won't want to admit that in your future fragile emotional state).
I've been running the Schwalbe lightweight ones at around 95g for a 26x2.1 tube for the last couple of years without any problems.
On my road bike though the next step will be the silly light & stupid expensive Eclipse ones to save a bit more weight, but only on my best wheels at over £40 a tube!!
I used to use Schwalbe XXLight. They were just like any other tube tbh, I didn't notice any more punctures than with heavier ones, in normal use. But, if they did puncture, man did they puncture- I flatted in a rocky section and by the time I'd rolled to a halt it was more hole than tube. Was happy overall though.
The Eclipse ones are silly expensive and surprisingly, despite that one of mine was still defective (ends joined together with a twist, it's a mobius tube). Haven't actually ridden them yet, looks like first ride will be antur stiniog in April on the 224. I got them more for the alleged toughness than for the lightness.