derailleur cable -- why does it have to go in the back?
06-22-12, 09:45 AM
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derailleur cable -- why does it have to go in the back?
Cleaning the bike last night I started thinking about this...with all the shifter-cable issues (length, weight, hanging out a loop back there that could snag) has anyone ever tried to design a derailleur with the cable coming in the other side, near the front of the bike? Is it possible?
06-22-12, 09:50 AM
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Cleaning the bike last night I started thinking about this...with all the shifter-cable issues (length, weight, hanging out a loop back there that could snag) has anyone ever tried to design a derailleur with the cable coming in the other side, near the front of the bike? Is it possible?
IT would be a PITA to engineer around that.
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06-22-12, 10:30 AM
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06-22-12, 11:11 AM
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Yeah. SRAM mtb RDs are all like that now. Routing the shifter cables under the bar tape doesn't help. The old style brifters where the cables come out the sides and makes a single smooth large radius 90 degree bend to the stops on the downtube work much better in this regard.
Of course Di solves that problem completely.
Of course Di solves that problem completely.
06-22-12, 11:17 AM
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06-22-12, 11:33 AM
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06-22-12, 11:39 AM
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I have been staring at the picture for like 10 minutes. I've finally decided that they're not photoshopped on there, but I can't figure out what they are.
06-22-12, 12:15 PM
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It probably has something to do with those red spots. That's not really a factory-bought polka-dot rim, is it? It seems that someone missed a spot at about 5:00 on that rim.
06-22-12, 12:19 PM
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For what its worth, my experience with the SRAM mtb stuff pictured is that they work decently when the cable comes down the seat stay (like on an mtb frame), but not as well when it comes along the chain stay (like a road bike). There is enough of a difference in the angle that you have to have the short piece of cable perfect or you have trouble reaching the full gear spectrum. A tad too long, and you can't spring return to the smallest cogs, too short and you have no tension on the housing to allow relative movement (nothing happens when you index, if I recall correctly).
Edit: not saying that it doesn't work spectacularly once figured out. My primary bike has SRAM X9, and it works smoother and more consistently than 105, IMO.
Edit: not saying that it doesn't work spectacularly once figured out. My primary bike has SRAM X9, and it works smoother and more consistently than 105, IMO.
06-22-12, 12:35 PM
#12
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For what its worth, my experience with the SRAM mtb stuff pictured is that they work decently when the cable comes down the seat stay (like on an mtb frame), but not as well when it comes along the chain stay (like a road bike). There is enough of a difference in the angle that you have to have the short piece of cable perfect or you have trouble reaching the full gear spectrum. A tad too long, and you can't spring return to the smallest cogs, too short and you have no tension on the housing to allow relative movement (nothing happens when you index, if I recall correctly).
06-22-12, 07:45 PM
#13
my nice bike is at home
dude, you are talking about the future! Its not here yet..
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