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PostPosted: Thu Feb 14, 2013 1:48 am 
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Joined: Mon Oct 03, 2011 5:32 pm
Posts: 64
Planning on getting some 2.4 Rocket Ron's, i want to get some lightweight tubes......


they do two Schwalbe XXlight, one goes up to 2.10 at 100g and the other is 2.35 at 130g

http://www.sjscycles.co.uk/schwalbe-sv1 ... prod14897/

http://www.sjscycles.co.uk/schwalbe-sv1 ... prod18127/

im feeling that the 2.35 would be the most appropriate, but then this is weightweenies and im wondering if i can get away with the 2.10's in a 2.40????

wanting to stick with Schwalbe as we are a stockest of them

does anyone have experience of durability or compatibility?

would really appreciate

thanks


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PostPosted: Thu Feb 14, 2013 10:36 am 
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Joined: Wed Jan 18, 2012 4:23 pm
Posts: 425
Location: Midlands, United Kingdom
Similar idea to mine, I use Schwalbe 26x1.0-1.5 in my 2.2 tyres, never had a problem, they are 125g and I only pay £4 (about $6 US) each.

A friend uses 29er tubes in his home built 36er as the 36" tubes are 500g EACH.

So I'd say it's worth trying the 2.1's......

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Posted: Thu Feb 14, 2013 10:36 am 


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PostPosted: Thu Feb 14, 2013 1:56 pm 
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Joined: Sat Jun 06, 2009 7:28 am
Posts: 479
a) Why are you running tubes?

b) why are you running 2.4s and tweaking out about weight? If you're riding a bike like it should be ridden with 2.4s (ie, sideways, in the air) then lightweight stuff will just be a non-starter.


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PostPosted: Thu Feb 14, 2013 10:00 pm 
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Joined: Mon Oct 03, 2011 5:32 pm
Posts: 64
TheRookie wrote:
Similar idea to mine, I use Schwalbe 26x1.0-1.5 in my 2.2 tyres, never had a problem, they are 125g and I only pay £4 (about $6 US) each.

A friend uses 29er tubes in his home built 36er as the 36" tubes are 500g EACH.

So I'd say it's worth trying the 2.1's......



thankyou, i emailed sjs cycles yesterday and they told me........ "The SV14 X light tubes will be fine for use in your 2.4” tyres.
I wouldn’t recommend the 2.10” versions though, the thin rubber cannot cope with the extra volume needed to inflate a 2.4” tyre.
Normal weight 2.10” tubes tend to be fine, but not the extra light versions."

i think thats the crux is that there the extra light versions and best not to push them too much.but then it could just be them covering there asses perhaps

thanks


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PostPosted: Thu Feb 14, 2013 10:06 pm 
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Joined: Mon Oct 03, 2011 5:32 pm
Posts: 64
Tokyo Drifter wrote:
a) Why are you running tubes?

b) why are you running 2.4s and tweaking out about weight? If you're riding a bike like it should be ridden with 2.4s (ie, sideways, in the air) then lightweight stuff will just be a non-starter.



thanks for the reply 'Tokyo Drifter', if we go down this line of inquiry its going to end up in an argument.

Anything more helpful would be greatly appreciated thanks again


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PostPosted: Thu Feb 14, 2013 10:15 pm 
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Joined: Thu Jan 13, 2011 4:04 pm
Posts: 510
Location: Sunny UK
if your bedget will stretch to £ 9.99 consider:

Maxxis Fly Weight Innertube



At .45mm thin, flyweight inner tubes are the lightest butyl tubes known to mankind. Speed is increased because rotational weight is decreased. Flyweight tubes are packaged with a unique cloth rim strip to be used only with flyweight tubes.

•The lightest innertubes available
•0.45mm Thin
•For use with Maxxis rim strip (supplied)
•Valve Types: Presta valve, 48mm Presta or 60mm Presta
•Sizes: 26x1.50/1.75" , 26x1.95/2.125" or 700cx18/25c
•Weight: 86g (1.50/1.75"), 104g (1.95/2.125")
•Colour: Black


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PostPosted: Fri Feb 15, 2013 8:34 pm 
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Joined: Fri May 02, 2008 5:39 pm
Posts: 531
Location: Here, there and everywhere
Tokyo Drifter makes a very valid point. 2.4 is massive, large even by DH standards.

Tubeless or regular tubes designed to work with the size tyres you use would certainly be far more logical than trying to get away an inadequate solution for a few g's. If the g's matter why so large tyres?

Lightweight tubes work perfectly fine if used as intended. Before tubeless I liked Conti Supersonics although I am not sure they are made beyond about 2.1...


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Posted: Fri Feb 15, 2013 8:34 pm 


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