March 25, 2015, 9:43 p.m. -  kain0m

#!markdown I think the most important point is, it is not about stiffness or weight or any other "engineering fact". It is, however, about three big things: - Making the bike companies look innovative. Just take a look at how innovative they think they are for using bigger wheels. - Making your existing stuff incompatible. Cranksets, Derailleurs, Forks Hubs, etc. - so many high end parts from just five years ago don't fit anymore because the standard has changed in a way thatnis incompatible with new parts. 20*110 was convertible to 15*100, which is why they fixed their mistake with 15*110. Also, dealers have stockpiles of old stuff which is obsolete - so they have to do a blowout sale there, and buy new stuff from the manufacturer. - Sell whole bikes, not upgrades. There are fewer and fewer framekits available, fewer forks, etc. If spares are available, it will increase the lifetime of what you have. Their vision is a high-tech piece of kit which has to be serviced twice a year and can only be replaced as a whole.