sram shifter downshifting question
09-27-10, 12:28 AM
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sram shifter downshifting question
the only groupset i've ever ridden is Shimano, i know when you're downshifting and you run out of gears the lever will not move.
for a sram group what happens when you're on your biggest cassete cog and you still try to downshift (as i often do when i'm doing hills) since you're using the same lever that upshifts, does it come to a stop? when you un-depress the lever does that mean you subsequently upshift?
thanks for the details, i'm currently considering a rival group to replace my tiagra triple and am wondering about the logistics
for a sram group what happens when you're on your biggest cassete cog and you still try to downshift (as i often do when i'm doing hills) since you're using the same lever that upshifts, does it come to a stop? when you un-depress the lever does that mean you subsequently upshift?
thanks for the details, i'm currently considering a rival group to replace my tiagra triple and am wondering about the logistics
09-27-10, 02:13 AM
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Ahhh, I have been wondering the same thing as well. I read a thread somewhere the other day that said it wouldn't stop, thanks for clearing that up GoSharks.
09-27-10, 09:07 AM
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from my friends: they say on their rival, sometimes this doesn't happen & they end up shifting up a cog
from personal experience with my sram red: when you on your largest cog & shift down, the shifter paddle moves a bit, but then you hear a weird click. after that, all the tension in the inner cable is released and the shifter doesnt move. fwiw, since the downshift throw is larger than the upshift throw, i don't usually release the paddle when i hear just any clicking. Also, i keep a good eye on cadence have have figured that my speed (usually around 11mph on my 34x23) is about 115% of the cadence, and my speed on the 34x25 is usually around 9mph while the cadence is probably 87rpm. so i know when not to downshift.
from personal experience with my sram red: when you on your largest cog & shift down, the shifter paddle moves a bit, but then you hear a weird click. after that, all the tension in the inner cable is released and the shifter doesnt move. fwiw, since the downshift throw is larger than the upshift throw, i don't usually release the paddle when i hear just any clicking. Also, i keep a good eye on cadence have have figured that my speed (usually around 11mph on my 34x23) is about 115% of the cadence, and my speed on the 34x25 is usually around 9mph while the cadence is probably 87rpm. so i know when not to downshift.
09-27-10, 09:13 AM
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It's an adjustment issue. If you have the limit screw and tension wrong it may not be able to pull far enough to get that second weird click that cancels the shift. I have a hard time keeping my rival setup adjusted so that I consistently get that click, but I have extenuating crappy wheel circumstances.
