I've decided I need some mudguards (no debate please ) but am confused about what size I need. My tyres are 700x38. I've found these on the CRC site but am confused. http://www.chainreactioncycles.com/Models.aspx?ModelID=25793 My tyres are smooth down the middle but slightly nobbly on the sides. Does this mean I need the Hybrid 700c rather than the Wide 700c? Thanks!