I leave it up to my mechanic which brand to use. As for cycling... I race BMX, mess about on my MTB and keep fit on the road. Only thing I haven't tried is track.
I have to give my vote to Shimano as they are the best parts that i have used and they have not given me any problems so far.
[TABLE="width: 215"] [TR] [TD="width: 215"]sram is also exciting but I think that the cycling part that I like if in the course of a hill. [/TD] [/TR] [TR] [TD]why I can say that?[/TD] [/TR] [TR] [TD]because the awaited moment is when it's down the hill in the Bohemian like we've been through difficult phases[/TD] [/TR] [/TABLE]