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Schwalbe Marathon Plus 700X25C Wired Tyre with Smartguard Reflective S/Wall 580g (25-622) - Black
on 8 October 2012
These are high qaulity tyres. I bought them for more tricky wet and frozen roads for use in the UK during the Winter. I ride a Ridgeback Ultra Flight 04. It is pretty quick and had ultra continental tyres (slicks) on it during the summer of 2012. The Schwalbe Marathon Plus tyres were not so easy to fit at home - I did it in the end, care needed with installing the inner tube (push valve in before inflation to ensure that the rim of the type does not catch the edge of the inner tube, otherwise you'll get a buldge in the side of your tyre, like I did 3 times. The extra thickness of the tyre is noticable (for added protection against punctures - which is great!), as is the additional weight. The latter is one compromise that I had thought about but hadn't factored in fully. I guess that I am now 3 mph slower than when using the slicks (validated by the same route, similar road and weather conditions etc.). I have not tested them on frost or ice yet - still to come. I hope they are better than slicks, but then there is conflicting advice on the web about that. I have subsequently learnt that the dynamics of water removal from cycle tyres is very different to car tyres, especially in the wet. You can't aqua plane on a bike like mine, so more contact with the road is actually better - one for you scientists out there!
Overall, a good purchase (for the price - local bike shop engineer was very impressed). However, there are more fundamental questions you need to ask yourself about this tyre, and indeed related tyre products.