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#11
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SRAM Grip Shift Front Derailleur Question
bentbiker must be edykated coz e writed:
I am not sre that is correct. granted any sram with a number on it is only compatible with a sram REAR derailleur, but it should work with that shimano 105 front derailleur. hang on, somebody like "lowracer" will clear it up, or post it to the technical section on BROL, but I do think it should work, mine is. swamprun wrote: On the shifter it says X-7. Looks like a verified problem. If the shifter has a number... 5.0 etc its incompatible. If it has a name like Centera, Attack etc. it should be Shimano compatible. Mikael Sram front shifters are compatible with Shimano and Campag front mechs. Afterall Sram do not make front mechs so there is no point in them being Sram specific. -- Ian http://www.catrike.co.uk |
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#12
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SRAM Grip Shift Front Derailleur Question
Mikael Seierup wrote:
If the shifter has a number... 5.0 etc its incompatible. If it has a name like Centera, Attack etc. it should be Shimano compatible.898/B] Um. . .no. That is for the rear derailleur. Front derailleurs will work with virtually any SRAM version. Take a look at the specs on a lot of bikes for this. -- Derek, Burley Canto -------------------------- Posted via cyclingforums.com http://www.cyclingforums.com |
#13
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SRAM Grip Shift Front Derailleur Question
Um. . .no. That is for the rear derailleur. Front derailleurs will work with virtually any SRAM version. Take a look at the specs on a lot of bikes for this. That appears to be true. When SRAM says "Shimano Compatible", they are referring to the rear derailleur only. Which means my X-7 should work, but hell if I can figure out how. |
#14
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SRAM Grip Shift Front Derailleur Question
it might have something to do, with that low end crank set on the Jet
stream, have another one you can throw on to try it? swamprun wrote: Um. . .no. That is for the rear derailleur. Front derailleurs will work with virtually any SRAM version. Take a look at the specs on a lot of bikes for this. That appears to be true. When SRAM says "Shimano Compatible", they are referring to the rear derailleur only. Which means my X-7 should work, but hell if I can figure out how. |
#15
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SRAM Grip Shift Front Derailleur Question
I don't think the crankset is the main problem. I spent about 1.5 hours
working on the cursed thing today. I found I could get some degree of proper functioning by leaving quite a bit of slack in the cable in position 1 (small chainring). It shifts quite well to the middle chain ring now without overshooting. The shift to the large chainring requires a LOT of force to get to the third click. I pushed the high limit screw to the absolute max of pushing the chain off the outside of the big chainring to reduce the cable tension as much as possible. Another thing I learned today is that SRAM makes 2 versions of the front twist shifter. There is an "indexed" version, which is what I have, and a "micro adjust" version which apparently has a whole bunch of smaller clicks. I looked at several online bike stores selling SRAM stuff, and only one of them shows the selection for the micro-adjust option. This may be the way to go to get decent function out of this contraption. On Mon, 27 Oct 2003 19:47:30 -0500, bentbiker wrote: it might have something to do, with that low end crank set on the Jet stream, have another one you can throw on to try it? |
#16
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SRAM Grip Shift Front Derailleur Question
swamprun wrote: ... Another thing I learned today is that SRAM makes 2 versions of the front twist shifter. There is an "indexed" version, which is what I have, and a "micro adjust" version which apparently has a whole bunch of smaller clicks. I looked at several online bike stores selling SRAM stuff, and only one of them shows the selection for the micro-adjust option. This may be the way to go to get decent function out of this contraption. Having used both three position (SRAM 5.0), six position (SRAM 7.0) and eight position (SRAM Plasma) GripShifters, I prefer to have the maximum number of detents, as it allow trimming of the front derailleur to avoid chain rub. On an USS HPV, I prefer Shimano Ultegra (8-speed) and Dura-Ace (9-speed) bar end shifters. Tom Sherman - Near the confluence of the Mississippi and Rock Rivers RANS "Wavewind" and Rocket, Earth Cycles Sunset and Dragonflyer |
#17
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SRAM Grip Shift Front Derailleur Question
on the SRAM website there are technical manuals that explain how everything works/should be done. I learned a lot about my rear derailleur that way. It works a lot differently now, if not better. http://www.sram24.com/newtechdoc/english/index.html |
#18
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SRAM Grip Shift Front Derailleur Question
Something else to check. Make sure that the derailleur cable is
attached to the derailleur at the right place and angle. If you completely remove the pinch bolt which holds the cable to the derailleur, you should notice a groove under the screw which the cable should be located in when the screw is tightened. Also my Shimano derailleur has a little lip or raised place right at the pinch bolt, on the derailleur itself. At this point, where the cable exits the pinch bolt, the cable needs to bend up and over the lip and then down to the cable housing stop on the frame. This lip positions the cable out near the end of the lever arm which operates the derailleur. This establishes the correct distance from the pivot of the lever arm that the cable needs to be at. If the cable attaches to the pinch bolt too close to the pivot point, then the derailleur cage will move too far between the clicks and will also require more torque at the shifter to get the cage to move. If the cable is attached further from the pivot then the derailleur cage will move less per click and will require less torque at the shifter. My Shimano rapid-fire shifters pull 3/4 of an inch of cable across their full range. That only about an 1/8 of an inch less than yours. So it sounds like your shifters are pretty close to what they should be. It is ok for the cable to be a little slack while in position 1. Make sure that your cable is attached correctly at the derailleur. Hope this helps and isn't too confusing. If you would like me to clarify, please don't hesitate to ask. Greg |
#20
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SRAM Grip Shift Front Derailleur Question
For recumbents where we have longer chain runs and slack, micro indexed front
derailleurs is the way to go. You can fine tune and adjust so there is no rubbintg. J Gaerlan - Gaerlan Custom Cycles http://www.gaerlan.com "home of travel bikes and bike travels" (415)362-3866: (415)677-8943 fax |
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