|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
bottom bracket cable guide
I have a older Gios that has been upgraded to Ergo. The frame has the metal
rear derailleur cable guide above the bottom bracket. I have noticed this setup produces more friction than the newer under the BB type. Is there a teflon or other type of insert I could put into the guide to reduce friction? |
Ads |
#2
|
|||
|
|||
bottom bracket cable guide
On Feb 2, 3:58*pm, "Neal" wrote:
I have a older Gios that has been upgraded to Ergo. The frame has the metal rear derailleur cable guide above the bottom bracket. *I have noticed this setup produces more friction than the newer under the BB type. *Is there a teflon or other type of insert I could put into the guide to reduce friction? Perhaps you could use a teflon coated cable? |
#3
|
|||
|
|||
bottom bracket cable guide
On Feb 2, 1:23*pm, wrote:
On Feb 2, 3:58*pm, "Neal" wrote: I have a older Gios that has been upgraded to Ergo. The frame has the metal rear derailleur cable guide above the bottom bracket. *I have noticed this setup produces more friction than the newer under the BB type. *Is there a teflon or other type of insert I could put into the guide to reduce friction? Perhaps you could use a teflon coated cable? When I had my old steel bike, I used a section of just the cable liner (the teflon-coated ones), and replaced it every maintenance cycle - worked fine. |
#4
|
|||
|
|||
bottom bracket cable guide
Neal wrote:
I have a older Gios that has been upgraded to Ergo. The frame has the metal rear derailleur cable guide above the bottom bracket. I have noticed this setup produces more friction than the newer under the BB type. Is there a teflon or other type of insert I could put into the guide to reduce friction? Oil the wire at the clip occasionally with whatever you put on a chain. A better solution is to drill the BB shell, add a nylon plate and flip the chainstay stop from top to bottom (or add a clip-on stop, depending on the year of your Gios). Use gear casing not spiral casing and Campagnolo Ergo gear wires. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#5
|
|||
|
|||
bottom bracket cable guide
On 2009-02-02, Neal wrote:
I have a older Gios that has been upgraded to Ergo. The frame has the metal rear derailleur cable guide above the bottom bracket. I have noticed this setup produces more friction than the newer under the BB type. Is there a teflon or other type of insert I could put into the guide to reduce friction? I've never had a problem with these guides, but I suppose you could pull the liner out of a piece of cable housing and use that. -- John ) |
#6
|
|||
|
|||
bottom bracket cable guide
On Feb 2, 8:58*pm, "Neal" wrote:
I have a older Gios that has been upgraded to Ergo. The frame has the metal rear derailleur cable guide above the bottom bracket. *I have noticed this setup produces more friction than the newer under the BB type. *Is there a teflon or other type of insert I could put into the guide to reduce friction? Use Molyslip, an engine oil additive containing molybdenum disulphide and graphite. Only a drop on the cable and on the guide. Worked a treat on a door latch which kept sticking and could not hold any other lubricant for long. Could also be valuble for long term chain lubrication. |
#7
|
|||
|
|||
bottom bracket cable guide
Hi,
Neal wrote: I have a older Gios that has been upgraded to Ergo. The frame has the metal rear derailleur cable guide above the bottom bracket. I have noticed this setup produces more friction than the newer under the BB type. Is there a teflon or other type of insert I could put into the guide to reduce friction? Last fall I modernized the shifting on my girlfriend's race bike which uses small metal tubes for cable routing above the bottom bracket. I cleaned the tubes and inserted enough grease, but apart from that there is no problem. If you use some kind of insert you have to make sure it doesn't impair the cable and it stays in place. The most elegant solution might be to remove the outer part of the housing from the cable stops downwards but to leave the inner part of the housing intact, so the cable itself stays in the housing until beyond the bottom bracket (a little more friction, but the tube stays put and it's optically "clean")... Thanks to very bad public bike stands I damaged my cables a few times. So my bike uses upper cable routing for gear-shift now ;-) And - being an all-weather-bike I took great care to house the cables as much as possible, so the front derailleur housing goes from the shifter to a cable-stop along the seat tube and the rear derailleur housing right into the derailleur's cable-stop. You wouldn't want to do this on a race-bike (the upper routing I mean), but if you experience continuous problems, try a fully-housed cable, right up to the rear derailleur and use a clamp-on cable stop close to the bottom bracket for the front one (you need to experiment where to put the clamp-on cable stop, this is a bit of a problem ;-) Have fun... |
#8
|
|||
|
|||
bottom bracket cable guide
"Hands Of Stone" wrote in message ... On Feb 2, 1:23 pm, wrote: On Feb 2, 3:58 pm, "Neal" wrote: I have a older Gios that has been upgraded to Ergo. The frame has the metal rear derailleur cable guide above the bottom bracket. I have noticed this setup produces more friction than the newer under the BB type. Is there a teflon or other type of insert I could put into the guide to reduce friction? Perhaps you could use a teflon coated cable? When I had my old steel bike, I used a section of just the cable liner (the teflon-coated ones), and replaced it every maintenance cycle - worked fine. I tried your suggestion and the cable liner definately improved the ease of shifting. I thought the liner would move out of place but it stays in the guide perfectly. Neal |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Bottom Bracket Bolt for Specialized Sirius (Cable Guide) | Phil | Techniques | 5 | August 4th 08 10:04 PM |
Sourcing bottom bracket cable guides | Graham Ashton | UK | 4 | May 27th 08 08:53 AM |
Bottom Bracket Cable Guide for Specialized Allez Elite A1 | al77 | Techniques | 7 | November 30th 06 05:18 PM |
Bottom Bracket Guide Problem - Specialized Roubaix | [email protected] | Techniques | 5 | January 25th 06 03:50 AM |
Colnago Front Derailleur Cable Rubbing on Bottom Bracket | jimbob369 | Techniques | 5 | November 15th 05 01:53 PM |