There has been some discussion about the appropriate tyre section width that should be run on the stock rims size. The basic argument of this is that the wider the section of the tyre then the more distorsion of the tread profile to get the tyre to fit onto the stock rim. For example a 140 section tyre would describe some radius instead of being flat. In effect the edge of the tread is bent round because of the way its fitted. It's thought that this may be a problem when trying to corner aggressivly on muddy ground as the edge blocks never come into play and seemingly this type of tyre shape can lead to catching the edge of ruts and cause the bike to climb out with the associated instability / cross rutting etc and so on. Has anybody else heard of this phemonina or know anything about it? Tyre technicians / manufacturers - your input would be most welcome. Thanks
