Originally Posted by
banerjek
Could you say a bit more about this? I had a Rival shifter fail on me a few weeks back (losing the right when riding into a stiff headwind was not a pleasant surprise). Some metal part inside that pivots failed causing my lever to fall off completely and land in a ditch.
SRAM sent a warranty replacement with no hassle, but if there's anything I can do to reduce the possibility of this happening again, I'd like to know what it is.
That's the common failure. I have a theory that it has to do with how the limit screw and tension are set. If you're at the high end and go for 1 more gear and it doesn't bypass and stay in the large cog but instead stops and jumps down a cog then there is too much hard stop/tension at that end of the travel - and I feel that it puts the critical parts under too much tension and causes the failure. Many, many of their shifters have run into this issue and many people have gone through multiple versions, yet - some that are set up by some mechs just never seem to have that failure. That's where I am starting to think that it has to do with how the mech sets the stop and tension.