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7sp RSX - Shimergo - best path?
Mom's got a mid-'90s Novara Randonee with 7-speed RSX on it. When it
gets below 50 degrees, the right brifter won't shift in either direction. They've tried cleaning it out with WD-40 and high-pressure air, but nothing's made a difference. Since she mostly likes to ride it at 0-dark:30 to spinning class (don't laugh - she's the instructor) the inability to shift before it warms up is a big deal. So here are a few options we've kicked around, having consulted the cable pull tables at http://www.ctc.org.uk/DesktopDefault.aspx?TabID= 3946 1) replace it with a Sora 7-Speed brifter 2) go Shimergo a)9-speed Mirage levers with the existing 7-speed cassette b)10-speed Veloce levers with a 7-of-8 cassette c)b)10-speed Veloce levers with a new freehub body, 8-speed cassette and redished wheel She likes the idea of Ergos, both for their serviceability and their cleaner cable routing. She often uses a handlebar bag with a map case, and having the gear cables under the tape would be nice. The downside to the 9-speed Ergos is that they would give .26mm extra mech throw per shift, and they seem to think that's .04mm too much. Anybody have any real-life experience with this combo? With the 10-sp ergos,we have to deal with a new cassette.I hear about 8- of-9 quite a bit, but has anyone tried 7-of-8 to get the cogs on the old freehub body? Is there a preferred freehub body to use if we decide to convert the hub to 130mm OLD, or will any ol' body work on this 126mm RSX hub? TIA for any advice! -Hank |
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#2
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7sp RSX - Shimergo - best path?
Hank Wirtz wrote:
Mom's got a mid-'90s Novara Randonee with 7-speed RSX on it. When it gets below 50 degrees, the right brifter won't shift in either direction. They've tried cleaning it out with WD-40 and high-pressure air, but nothing's made a difference. Since she mostly likes to ride it at 0-dark:30 to spinning class (don't laugh - she's the instructor) the inability to shift before it warms up is a big deal. So here are a few options we've kicked around, having consulted the cable pull tables at http://www.ctc.org.uk/DesktopDefault.aspx?TabID= 3946 1) replace it with a Sora 7-Speed brifter 2) go Shimergo a)9-speed Mirage levers with the existing 7-speed cassette b)10-speed Veloce levers with a 7-of-8 cassette c)b)10-speed Veloce levers with a new freehub body, 8-speed cassette and redished wheel She likes the idea of Ergos, both for their serviceability and their cleaner cable routing. She often uses a handlebar bag with a map case, and having the gear cables under the tape would be nice. The Mirage 9s is servicable, the Xenon less so. Also, if the handlebars only have one groove, things may get a little lumpy. The downside to the 9-speed Ergos is that they would give .26mm extra mech throw per shift, and they seem to think that's .04mm too much. Anybody have any real-life experience with this combo? I've got two bikes with this setup an a friend of mine has another. In practice because the top and bottom gear positions are set by the limit screws, and you can get the middle (number 4 of 7) one bang on, it means your worst case mech throw error is .52mm (on gears 2 and 6). I was prepared to have to split the cassette and put in spacers made from beer cans, but so far that has proved unnecessary, even on the two bikes which have 8 speed cassettes made out of a 7 with an extra sprocket, where the maximum theoretical error is .78mm on either gear 2 or 7. The other alternative would be the hubbub arrangement, which uses all the same bits you have if you tried the above and it didn't work. That is supposed to be a "good mixed marriage" according to the table. The other options just seem more expensive without getting you a lot unless the existing cassette is worn out. With the 10-sp ergos,we have to deal with a new cassette.I hear about 8- of-9 quite a bit, but has anyone tried 7-of-8 to get the cogs on the old freehub body? I've not tried the 10 speed ergos. Is there a preferred freehub body to use if we decide to convert the hub to 130mm OLD, or will any ol' body work on this 126mm RSX hub? If all you want to do is convert the hub to 130mm OLD, then 2 x 2mm spacers will do the trick, but I presume you mean that you want to convert the splined body from 7 to 8/9 speed. In that case, this is what you need to know: http://www.sheldonbrown.com/k7.html#transplant -- JimP -- "We don't have a plan, so nothing can go wrong" - Spike Milligan |
#3
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7sp RSX - Shimergo - best path?
Hank Wirtz wrote: Mom's got a mid-'90s Novara Randonee with 7-speed RSX on it. When it gets below 50 degrees, the right brifter won't shift in either direction. They've tried cleaning it out with WD-40 and high-pressure air, but nothing's made a difference. Since she mostly likes to ride it at 0-dark:30 to spinning class (don't laugh - she's the instructor) the inability to shift before it warms up is a big deal. So here are a few options we've kicked around, having consulted the cable pull tables at http://www.ctc.org.uk/DesktopDefault.aspx?TabID= 3946 1) replace it with a Sora 7-Speed brifter 2) go Shimergo a)9-speed Mirage levers with the existing 7-speed cassette b)10-speed Veloce levers with a 7-of-8 cassette c)b)10-speed Veloce levers with a new freehub body, 8-speed cassette and redished wheel She likes the idea of Ergos, both for their serviceability and their cleaner cable routing. She often uses a handlebar bag with a map case, and having the gear cables under the tape would be nice. The downside to the 9-speed Ergos is that they would give .26mm extra mech throw per shift, and they seem to think that's .04mm too much. Anybody have any real-life experience with this combo? How about Mirage Ergo-converted to 8s with a disc(we have them) any Campag rear der and go ride with the existing cogset and chain. With the 10-sp ergos,we have to deal with a new cassette.I hear about 8- of-9 quite a bit, but has anyone tried 7-of-8 to get the cogs on the old freehub body? Is there a preferred freehub body to use if we decide to convert the hub to 130mm OLD, or will any ol' body work on this 126mm RSX hub? TIA for any advice! -Hank |
#4
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7sp RSX - Shimergo - best path?
Jim Price wrote:
If all you want to do is convert the hub to 130mm OLD, then 2 x 2mm spacers will do the trick, but I presume you mean that you want to convert the splined body from 7 to 8/9 speed. In that case, this is what you need to know: http://www.sheldonbrown.com/k7.html#transplant Even easier,with no mods to the hub, is the "8 of 9 on 7" option just a little lower down the page: http://www.sheldonbrown.com/k7.html#897 . You could go all the way up to Ultegra 9-speed this way. Another viable option is the Modolo Morphos brifters. Performance still sells them |
#5
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7sp RSX - Shimergo - best path?
"Hank Wirtz" wrote in message 6... Mom's got a mid-'90s Novara Randonee with 7-speed RSX on it. When it gets below 50 degrees, the right brifter won't shift in either direction. They've tried cleaning it out with WD-40 and high-pressure air, but nothing's made a difference. As you don't mention cleaning the cables and der, there are two obvious possibilities. |
#6
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7sp RSX - Shimergo - best path?
"Dale Benjamin" wrote in
: "Hank Wirtz" wrote in message 6... Mom's got a mid-'90s Novara Randonee with 7-speed RSX on it. When it gets below 50 degrees, the right brifter won't shift in either direction. They've tried cleaning it out with WD-40 and high-pressure air, but nothing's made a difference. As you don't mention cleaning the cables and der, there are two obvious possibilities. Obvious but not the case. If we start out on the big cog, the inner lever won't release any cable to upshift. Were it cable/housing/der, we'd have loose cable coming out of the lever, but we don't. The lever just won't click. Sorry I didn't mention that. |
#7
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7sp RSX - Shimergo - best path?
On Sat, 07 Jan 2006 06:31:32 -0800, Qui si parla Campagnolo wrote:
Hank Wirtz wrote: Mom's got a mid-'90s Novara Randonee with 7-speed RSX on it. When it gets below 50 degrees, the right brifter won't shift in either direction. They've tried cleaning it out with WD-40 and high-pressure air, but nothing's made a difference. I hate to ask, but have you flushed or replaced the cable housings? This is often the source of such stiffness. However, IME RSX brifters were stiff and clunky anyway, not one of Shimano's better efforts. So here are a few options we've kicked around, having consulted the cable pull tables at http://www.ctc.org.uk/DesktopDefault.aspx?TabID= 3946 1) replace it with a Sora 7-Speed brifter 2) go Shimergo a)9-speed Mirage levers with the existing 7-speed cassette b)10-speed Veloce levers with a 7-of-8 cassette c)b)10-speed Veloce levers with a new freehub body, 8-speed cassette and redished wheel She likes the idea of Ergos, both for their serviceability and their cleaner cable routing. She often uses a handlebar bag with a map case, and having the gear cables under the tape would be nice. The downside to the 9-speed Ergos is that they would give .26mm extra mech throw per shift, and they seem to think that's .04mm too much. Anybody have any real-life experience with this combo? How about Mirage Ergo-converted to 8s with a disc(we have them) any Campag rear der and go ride with the existing cogset and chain. That's what I'd do. But are 7sp Campy shift discs available? Then you wouldn't need a new cassette, or to mess with the rear wheel, since 7sp Campy/Shimano cassettes have exactly the same spacing. Sora brifters work well. The only problem is reaching the upshift lever from the drops. It would bother me but I could probably still live with it. Faced with this same situation I'd go Campy if I could though. Matt O. |
#8
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7sp RSX - Shimergo - best path?
Or just buy the $50 (starting bid) pair of Ergo 8s currently for sale
on Ebay. I use original Sachs/Ergo 8 on my seven speed tandem. It is kind of clunky, but it works fine. I would also take another run at flushing the STI levers. My old STI levers get very cranky around this time of year, and I have to flush them frequently. They always come back, though. I do not know if Ergo levers suffer from the same cold and wet weather problems. Another solution is a fixed gear for mom. That would get her warmed up before her spinning class. -- Jay Beattie. |
#9
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7sp RSX - Shimergo - best path?
Matt O'Toole wrote: On Sat, 07 Jan 2006 06:31:32 -0800, Qui si parla Campagnolo wrote: Hank Wirtz wrote: Mom's got a mid-'90s Novara Randonee with 7-speed RSX on it. When it gets below 50 degrees, the right brifter won't shift in either direction. They've tried cleaning it out with WD-40 and high-pressure air, but nothing's made a difference. I hate to ask, but have you flushed or replaced the cable housings? This is often the source of such stiffness. However, IME RSX brifters were stiff and clunky anyway, not one of Shimano's better efforts. So here are a few options we've kicked around, having consulted the cable pull tables at http://www.ctc.org.uk/DesktopDefault.aspx?TabID= 3946 1) replace it with a Sora 7-Speed brifter 2) go Shimergo a)9-speed Mirage levers with the existing 7-speed cassette b)10-speed Veloce levers with a 7-of-8 cassette c)b)10-speed Veloce levers with a new freehub body, 8-speed cassette and redished wheel She likes the idea of Ergos, both for their serviceability and their cleaner cable routing. She often uses a handlebar bag with a map case, and having the gear cables under the tape would be nice. The downside to the 9-speed Ergos is that they would give .26mm extra mech throw per shift, and they seem to think that's .04mm too much. Anybody have any real-life experience with this combo? How about Mirage Ergo-converted to 8s with a disc(we have them) any Campag rear der and go ride with the existing cogset and chain. That's what I'd do. But are 7sp Campy shift discs available? Then you wouldn't need a new cassette, or to mess with the rear wheel, since 7sp Campy/Shimano cassettes have exactly the same spacing. 8s Campag spacing is same as 7s shimano. Just limit rear der travel with the limit screws, use '6' clicks for '7s' cogset. Sora brifters work well. The only problem is reaching the upshift lever from the drops. It would bother me but I could probably still live with it. Faced with this same situation I'd go Campy if I could though. Matt O. |
#10
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7sp RSX - Shimergo - best path?
Matt O'Toole wrote: On Sat, 07 Jan 2006 06:31:32 -0800, Qui si parla Campagnolo wrote: Hank Wirtz wrote: Mom's got a mid-'90s Novara Randonee with 7-speed RSX on it. When it gets below 50 degrees, the right brifter won't shift in either direction. They've tried cleaning it out with WD-40 and high-pressure air, but nothing's made a difference. I hate to ask, but have you flushed or replaced the cable housings? This is often the source of such stiffness. However, IME RSX brifters were stiff and clunky anyway, not one of Shimano's better efforts. So here are a few options we've kicked around, having consulted the cable pull tables at http://www.ctc.org.uk/DesktopDefault.aspx?TabID= 3946 1) replace it with a Sora 7-Speed brifter 2) go Shimergo a)9-speed Mirage levers with the existing 7-speed cassette b)10-speed Veloce levers with a 7-of-8 cassette c)b)10-speed Veloce levers with a new freehub body, 8-speed cassette and redished wheel She likes the idea of Ergos, both for their serviceability and their cleaner cable routing. She often uses a handlebar bag with a map case, and having the gear cables under the tape would be nice. The downside to the 9-speed Ergos is that they would give .26mm extra mech throw per shift, and they seem to think that's .04mm too much. Anybody have any real-life experience with this combo? How about Mirage Ergo-converted to 8s with a disc(we have them) any Campag rear der and go ride with the existing cogset and chain. That's what I'd do. But are 7sp Campy shift discs available? Then you wouldn't need a new cassette, or to mess with the rear wheel, since 7sp Campy/Shimano cassettes have exactly the same spacing. 8s Campag spacing is same as 7s shimano. Just limit rear der travel with the limit screws, use '6' clicks for '7s' cogset. Sora brifters work well. The only problem is reaching the upshift lever from the drops. It would bother me but I could probably still live with it. Faced with this same situation I'd go Campy if I could though. Matt O. |
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