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6 Customer Reviews
Availability: In stock | Usually dispatched within 24 hours
Continental have over 100 years of experience in developing and producing bicycle tyres. Suitable for all makes of tyre, this ultra lightweight Inner Tube is available in both short and long Presta valves. It features seamless construction for a smooth feel and excellent handling. - A.D.
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Continental Grand Prix 4000S II Clincher Road Tyre - Black
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Have had a few flats on them but cannot complain.
30 August 2012 by
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I'd only use these again if I was racing on clinchers. I find that they puncher more easily and you have to be extra careful when you install them. That being said the performance is excellent and they actually feel more comfortable than heavier weight tubes.
7 January 2012 by
I have been using one of these tubes now for several months. I use a floor pump rather than hand pump so I have had no indication of trouble with the valve mounting in the tube being fragile. I have had the tube in and out of three tyres now and I have not damaged the valve mounting and the rubber is easy to work with in the tyres (Continental GP4000S). Although the rubber is thin, it is not "paper thin" and is certainly not as thin as the tubes in the old singles we used to ride (pink latex) 25 years ago.The weight claim is exact (I measured 52 g on pretty good scales) and the comparison with the Race Light of 100g makes it a much better tube from the point of view of rotational mass and inertia.Any time they would be on special, I would buy some again, and I think that if the chap above got three years out of his tubes, yes, he has done well.Regards to AllGeorge.
10 November 2011 by
These are great tubes and I have used them for years now. I use them with GP 4000S and have had only a couple of punctures in the last few years (touch wood). They also hold their pressure well, unlike latex tubes of similar weight. The only problem I have with these tubes is if I try to pump them up using the Lezyne Floor pump. Because this pump has a screw on valve adaptor, when you unscrew the adaptor after pumping up the tyres, it unscrews the whole inner valve with it and lets all the air out. I just use my Pedros's pump to pump these up.
12 May 2011 by
These are very thin tubes and are relatively expensive I only use them for racing because I got to many punctures training
28 April 2011 by
The Supersonic tube is the perfect mate for the Supersonic tyre. The rubber is paper thin, so you wouldn't want to use these tubes for everyday riding. Just pumping them up risks ripping the valve stem off (I haven't done it, but they are extremely thin so it has to be relatively easy).
5 April 2011 by
Continental Race Supersonic 28 Inner Tube 700 x 18-25mm Presta