K2 / Proflex Riders Group
General => Tech Forum => Topic started by: kondilemma on April 23, 2007, 03:35:06 pm
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My 857 is nearly complete! She is patiently sitting on the repair stand; the only items left are the chain and the cables. This leads me to my latest question:
Which frame guides do I use for the rear derailleur and brake?
The frame has a set of three--the bottom-most is obviously for the front changer. It has the housing stop where the housing ends and the cable runs exposed to the bb guide and up to the derailleur.
Is the topmost for the rear changer, and the middle for the rear brakes? Both the upper and middle guides look like they allow the housing to run thru them.
Would be great if someone could post some pics of their present cable routing, or direct me to some in the gallery.
Thanks all!
-Brad
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you can do it the same as my 855 here (my 857 is the same):
(http://img405.imageshack.us/img405/9213/857and855001mediumup9.jpg)
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the rear deraillieur cable goes straight through the swingarm without using the stops at the front and rear of the swingarm and if it is a low drag one you will wil get shifting which is just as good as before and you wont get any ghost shifting
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I use the stops on mine and don't seem to have any probs but through cabling might be best I agree.
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the short section of cable between the frame and the swingarm is the one responsible for my ghost shifting many years ago,some gore cable with a straight through the swingarm section fixed that.
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the short section of cable between the frame and the swingarm is the one responsible for my ghost shifting many years ago,some gore cable with a straight through the swingarm section fixed that.
OK, gore is no longer available. I am having the ghost shifting problem. Other options / close ups of the routing of the swing arm section?
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there are still gore cables available aren't there? Isn't it called Ride-On or something like that?
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ever tried one of those coghogs or rollamajigs - the pulleys that take the u-bend out of the last few inches before the rear mech? I use them with great success.
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the rear deraillieur cable goes straight through the swingarm without using the stops at the front and rear of the swingarm and if it is a low drag one you will wil get shifting which is just as good as before and you wont get any ghost shifting
I slipped the cable thru the swingarm just to make sure it would really make it--glided through like butter, no drag. Are you saying you managed to find a cable and HOUSING that will fit through the swingarm?
I bought the 857 new as a frame only, so I don't have the benefit of seeing the stock cable setup. Hey, I've only actually seen pictures of a built Proflex!
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I cant find Ride on's anywhere. (maybe just looking in the wrong place) My rear cable is great. I do have front mech cable rubbing issues though.
Keep the ideas coming!!! I do have some avid flack jacket sections I can use.
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on my 756 when i removed the stops the holes in the swingarm were easily big enough for cable plus housing.
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Mud riding seemed to cause lots of friction riding with the open cable through the swingarm on 856 #1. Routing 100 percent cable housing to both brakes and derailleurs solved all those problems a year ago. (Yes, I did figure out how to route cable all the way to the front der! It is so cool...)
The best solution I saved for 856 #2. Just finished up a single speed conversion. No more rear derailleur headaches. Now I'm always in the right gear!
Will
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I cant find Ride on's anywhere. (maybe just looking in the wrong place) My rear cable is great. I do have front mech cable rubbing issues though.
Keep the ideas coming!!! I do have some avid flack jacket sections I can use.
i put some velcro on my frame (not the hook side) between the cable and frame,
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I cant find Ride on's anywhere. (maybe just looking in the wrong place) My rear cable is great. I do have front mech cable rubbing issues though.
Keep the ideas coming!!! I do have some avid flack jacket sections I can use.
looks like they only make them for brakes now, but they do come up on Ebay from time to time NOS.
http://www.cyclingforums.com/archive/index.php/t-146810.html
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Carbon - great minds think alike! The velcro works great for cable rubs. I also use some on the swingarm chain side.
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Mud riding seemed to cause lots of friction riding with the open cable through the swingarm on 856 #1. Routing 100 percent cable housing to both brakes and derailleurs solved all those problems a year ago. (Yes, I did figure out how to route cable all the way to the front der! It is so cool...)
Will
I'd love to see your setup for solid housing to the front derailleur--a super idea.
I guess another solution for poor rear shifting could be running a single piece from front to back, zip-tieing it to the swingarm. Not estetically pleasing but it would work I'm guessing.
Whatever motivates bike makers to have open lengths of cable, where dust, crud and water can get in and gum up performance?
-Brad
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Brad,
I'll post some pix when in the next coupla days.
The cable basically comes down from the top tube. I made an "end cradle" for the housing on the top swingarm. Then I anchored the cable at the bottom of the bottom bracket with the existing screw...
Will