Best Derailluer

[xerxes]

Quote:Is it a matter of small adjustment?

Yes, take a look here: http://bikeride.com/adjust-front-derailer/

As to which is the best front and rear deraileur system, that's quite subjective, some people like Shimano, some SRAM and on road bikes there's Campangnolo as well. For a full system including front an rear derailleurs and shifters the top of the range models will likely cost nearly as much as you paid for the whole bicycle.