Both changes are aesthetically attractive, innovative design. Shimano wins with his concept Shadow has produced a range of attractive changes and very small. Sram has a more antique look, but nevertheless feeling is offering many more solidity. In exchange handles, no comparison the Sram are much better made and are clearly of higher quality than the Shimano. However Shimano has a viewer controls the speed at which we thing that has been suppressed in the Sram.
Both brands are based on opposing concepts, whereas in the Shimano system ratio Starring cable is 1: 2 and therefore the tension is the basis of operation, Sram the ratio of action is 1: 1 cable the movement the cable is the same on the handle with which the cable tension is not as critical as in Shimano in change.
Shimano
XT Vs Sram X9
The difference between the two concepts and systems changes are apparent when
applied on the bike. In Sram, changes are more defined and there is so lacking
diminishing our clutch pedal force for the marches between good.
There is an important difference in the functioning of the handles. Shimano use the index finger and thumb.
In strength and duration both offer similar parameters, it is clear that neither will withstand an excursion among our radios, but both will give us a long period of use without any problems.
SRAM X9 X.9 MTB Groupset Group Set 10-speed 7pcs
Conclusion
What is our choice? Assuming that both changes are already high end and therefore