_freak_ Posted July 13, 2010 Share Shimano XT RD M770 vs Shimano XT RD M771 educate me Link to comment Share on other sites More sharing options...
AndreZA Posted July 13, 2010 Share I think the 770 is Rapid Rise. If I'm you I'll go for the 772 which is the Shadow version. On CWC it is cheaper then the other two. Link to comment Share on other sites More sharing options...
VincentBikes Posted July 13, 2010 Share Only difference I can see is shifting action is low normal and top normal and 3g weight whatever that means I am not sure. Link to comment Share on other sites More sharing options...
AndreZA Posted July 13, 2010 Share Remember "Low normal" means it rest on the lowest gear namely the biggest (easiest) gear. "High normal" is the higher gear meaning the smallest more difficult. The last, 771, on is the standard one. Link to comment Share on other sites More sharing options...
VincentBikes Posted July 13, 2010 Share "high normal" means the derailluer, under control of only its spring, goes to the smallest cog and "low normal" means the opposite. High normal is by far the most common and, so far, universal on road bikes. Link to comment Share on other sites More sharing options...
_freak_ Posted July 13, 2010 Share i get the shadow part, what is rapid raise? my current setup is SLX crank, combo shifters, FD, cassette, chain, currently got a std Deore RD, should i just go for the SLX RD as well? Link to comment Share on other sites More sharing options...
DMC007 Posted July 13, 2010 Share Just go for XTR. Link to comment Share on other sites More sharing options...
_freak_ Posted July 13, 2010 Share why would Hi normal be better? Link to comment Share on other sites More sharing options...
_freak_ Posted July 13, 2010 Share Just go for XTR.bit overkill for me Link to comment Share on other sites More sharing options...
AndreZA Posted July 13, 2010 Share Rapid rise means that if you use your thumb to shift to a more difficult gear. The chain goes down when you pull the cable. Normally the chain will climb if you use your thumb or pulls the cable. Link to comment Share on other sites More sharing options...
_freak_ Posted July 13, 2010 Share yeah, the Deore i have now is Hi Normal then... Link to comment Share on other sites More sharing options...
VincentBikes Posted July 13, 2010 Share Rapid rise means that if you use your thumb to shift to a more difficult gear. The chain goes down when you pull the cable. Normally the chain will climb if you use your thumb or pulls the cable. Does this mean your gears work the other way around from the shifter side????? Link to comment Share on other sites More sharing options...
AndreZA Posted July 13, 2010 Share Does this mean your gears work the other way around from the shifter side????? Yes. On duel control levers you will press the lever down and the chain will move down. Link to comment Share on other sites More sharing options...
Robrider Posted July 13, 2010 Share Yes it does... I made that mistake, but it doesnt bother me too much. so my rear derailer the thumb increases the gear and the finger trigger decreases it. I think you get shifters that are specifficly for the rapid rise so that the gears work the normal way around from the shifter side. If i am correct the theory behind the rapid rise is that if u hit a sharp incline, you can drop gears very easily, becuase the in its neutral possition the derailer returns to the easy gear, compared with the normal set up where the tension in the cable pulls it into the easiest gear. Link to comment Share on other sites More sharing options...
VincentBikes Posted July 13, 2010 Share Yes. On duel control levers you will press the lever down and the chain will move down. Thanks Moegoe quite interesting !!!!!!!!!! learned something today:)... Link to comment Share on other sites More sharing options...
_freak_ Posted July 13, 2010 Share Yes it does... I made that mistake, but it doesnt bother me too much. so my rear derailer the thumb increases the gear and the finger trigger decreases it. I think you get shifters that are specifficly for the rapid rise so that the gears work the normal way around from the shifter side. If i am correct the theory behind the rapid rise is that if u hit a sharp incline, you can drop gears very easily, becuase the in its neutral possition the derailer returns to the easy gear, compared with the normal set up where the tension in the cable pulls it into the easiest gear.interesting... Link to comment Share on other sites More sharing options...
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