My stuff is flightdeck compatible, but I have never had it. Would be interested in thoughts on this...feel free to PM if this is a hijack!
I think it is related to this thread... :)
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Keep riding, it'll be second nature to you in no time.
I've been riding for a couple years and I had no idea that road bike shifters don't have numbers. I'm not ashamed to admit it. :)
Crosschaining is when the chain is on the biggest gear in front, and the biggest gear in back. If you look, you'll see that it is as far to the right as it can be on front, and as far to the left as it can be in back. Or, smallest and smallest, then it's as far left and far right front/back.
If you only have two chainrings up front, I think it doesn't matter? But if you have 3 chainrings, it's bad to have it in those extremes, because it can cause chain stretch, which will wear out the teeth on the thingies, I mean the sprockets, and then you won't be shifting smoothly. You don't need to use those extremes, because they overlap with gear ratios you can achieve using the middle chainring.
Ohhhhhhhhh gotcha. Ok one more thing to remember. I had no idea biking was so involved. I thought you got on and rode till your butt hurt, then you turned around and came home!
It still matters with a double, but it will be harder to crosschain than with a triple. You just don't want to be spending much time, if any, in your little ring little cog or big ring big cog. There will still be too much chain rubbing on the FD. There's a much smaller range of rear cogs that don't cause you to crosschain when you have a triple up front because of the limitation with the rings and FD position per ring.
csr1210: it's easier if you look under your leg (between right thigh and toptube), not around to the side. If you can see your chainrings -- just glance straight back without moving your head (just your eyes) and you should be able to see your cogs. I look at my gears probably more than I should (hasn't caused any accidents yet though :eek:). I don't lean or move my torso at all though.
ETA: I have to admit being guilty of a fair amount of small-small (on a double) or small-middle crosschaining. I never crosschain in big-big... But for some reason all of the reasonable big chainring combinations always seem that they will be harder than 39-12 or 42-12. Guess I should spend some quality time with a gear-inch chart :). Or maybe I just need to get stronger...