Issue with cheap Shimano left thumbie
07-21-23, 07:33 AM
#1
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Issue with cheap Shimano left thumbie
So...in building the Schwinn World sport for a friend, I ran into an issue with the front derailleur shifter.
It is nearly impossible to shift to the big ring. Anyone have experience?
The culprit
RX 100 FD
All in all it came out nicely...
It is nearly impossible to shift to the big ring. Anyone have experience?
The culprit
RX 100 FD
All in all it came out nicely...
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1987 Crest Cannondale, 1987 Basso Gap, 1992 Rossin Performance EL, 1990ish Van Tuyl, 1985 Trek 670, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Competition, 1987 Nishiki Tri-A, 1981 Faggin, 1996 Cannondale M500, 1984 Mercian, 1982 AD SuperLeicht, 1985 Massi (model unknown), 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super, 1971 Raleigh International, 1998 Corratec Ap & Dun, 1991 Peugeot Slimestone
1987 Crest Cannondale, 1987 Basso Gap, 1992 Rossin Performance EL, 1990ish Van Tuyl, 1985 Trek 670, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Competition, 1987 Nishiki Tri-A, 1981 Faggin, 1996 Cannondale M500, 1984 Mercian, 1982 AD SuperLeicht, 1985 Massi (model unknown), 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super, 1971 Raleigh International, 1998 Corratec Ap & Dun, 1991 Peugeot Slimestone
07-21-23, 08:04 AM
#2
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What happened? It didn't have enough pull for that FD?
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07-21-23, 08:19 AM
#3
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No, it (the thumbie) won't pull without a Herculean effort to get it moving from the small to large chain ring. I am wondering why it seems impossible to move the lever? I am also wondering if there is a trick to these...like moving it midway, then tightening the cable?
Was hoping someone had a similar experience and fix.
Was hoping someone had a similar experience and fix.
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1987 Crest Cannondale, 1987 Basso Gap, 1992 Rossin Performance EL, 1990ish Van Tuyl, 1985 Trek 670, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Competition, 1987 Nishiki Tri-A, 1981 Faggin, 1996 Cannondale M500, 1984 Mercian, 1982 AD SuperLeicht, 1985 Massi (model unknown), 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super, 1971 Raleigh International, 1998 Corratec Ap & Dun, 1991 Peugeot Slimestone
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07-21-23, 09:43 AM
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07-21-23, 11:25 AM
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What kind of trouble shooting have you done? Does the lever move freely when unconnected to the FD? Does the FD move freely when not connected to the shift lever? Is this a friction or index setup?
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07-21-23, 11:51 AM
#7
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Good suggestion. The cable housing is the most common cause of high effort shifting, but it is easy, as you suggest, to eliminate the derailleur itself and the shift lever first.
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"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
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07-21-23, 02:21 PM
#8
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So the FD and cable are not issues at all. It is most certainly the shifter.
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1987 Crest Cannondale, 1987 Basso Gap, 1992 Rossin Performance EL, 1990ish Van Tuyl, 1985 Trek 670, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Competition, 1987 Nishiki Tri-A, 1981 Faggin, 1996 Cannondale M500, 1984 Mercian, 1982 AD SuperLeicht, 1985 Massi (model unknown), 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super, 1971 Raleigh International, 1998 Corratec Ap & Dun, 1991 Peugeot Slimestone
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07-21-23, 02:47 PM
#9
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Open the shifter up and spray some WD-40 on the gears. Might me gummed up with hardened grease.
07-21-23, 03:51 PM
#10
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I did that too! I figured out the problem...that particular shifter STB.
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1987 Crest Cannondale, 1987 Basso Gap, 1992 Rossin Performance EL, 1990ish Van Tuyl, 1985 Trek 670, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Competition, 1987 Nishiki Tri-A, 1981 Faggin, 1996 Cannondale M500, 1984 Mercian, 1982 AD SuperLeicht, 1985 Massi (model unknown), 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super, 1971 Raleigh International, 1998 Corratec Ap & Dun, 1991 Peugeot Slimestone
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07-22-23, 10:24 AM
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The issue is largely the shifter itself. It was hard to move even without cable hookup. Wondering if there is a trick to setting these up for a double? Like maybe clicking it to the middle, then tightening the cable for the FD (maybe more leverage), or is it adjustable tension?
.
.
Is the tension on the shifter adjustable? Friction, correct? If there’s no tension adjustment- I’d go with STB shifter.
For Command Shifters on doubles I do set the starting point in the middle of travel- as if it was in the middle ring. But that’s just more so the shifter is in an easy position to reach.
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Commence to jigglin’ huh?!?!
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07-22-23, 10:33 AM
#12
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Well, it sounds like someone needs to work on their thumb strength, doesn’t it? 😸
Is the tension on the shifter adjustable? Friction, correct? If there’s no tension adjustment- I’d go with STB shifter.
For Command Shifters on doubles I do set the starting point in the middle of travel- as if it was in the middle ring. But that’s just more so the shifter is in an easy position to reach.
Is the tension on the shifter adjustable? Friction, correct? If there’s no tension adjustment- I’d go with STB shifter.
For Command Shifters on doubles I do set the starting point in the middle of travel- as if it was in the middle ring. But that’s just more so the shifter is in an easy position to reach.
Adjusting the tension just led to the ratchet stuff getting disconnected.
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1987 Crest Cannondale, 1987 Basso Gap, 1992 Rossin Performance EL, 1990ish Van Tuyl, 1985 Trek 670, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Competition, 1987 Nishiki Tri-A, 1981 Faggin, 1996 Cannondale M500, 1984 Mercian, 1982 AD SuperLeicht, 1985 Massi (model unknown), 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super, 1971 Raleigh International, 1998 Corratec Ap & Dun, 1991 Peugeot Slimestone
1987 Crest Cannondale, 1987 Basso Gap, 1992 Rossin Performance EL, 1990ish Van Tuyl, 1985 Trek 670, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Competition, 1987 Nishiki Tri-A, 1981 Faggin, 1996 Cannondale M500, 1984 Mercian, 1982 AD SuperLeicht, 1985 Massi (model unknown), 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super, 1971 Raleigh International, 1998 Corratec Ap & Dun, 1991 Peugeot Slimestone
07-22-23, 08:09 PM
#13
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Yeah that front shifter sucks. I have one i got off aliexpress. Yours might be fake too. The rear one is ok.
Stem shifters work well as friction thumbies. 1" quill and mtb bar grip area is the same 22.2. There are tonnes of the nice shimano/suntour ones floating around with no value too.
Stem shifters work well as friction thumbies. 1" quill and mtb bar grip area is the same 22.2. There are tonnes of the nice shimano/suntour ones floating around with no value too.
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07-23-23, 08:55 AM
#14
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Yeah that front shifter sucks. I have one i got off aliexpress. Yours might be fake too. The rear one is ok.
Stem shifters work well as friction thumbies. 1" quill and mtb bar grip area is the same 22.2. There are tonnes of the nice shimano/suntour ones floating around with no value too.
Stem shifters work well as friction thumbies. 1" quill and mtb bar grip area is the same 22.2. There are tonnes of the nice shimano/suntour ones floating around with no value too.
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1987 Crest Cannondale, 1987 Basso Gap, 1992 Rossin Performance EL, 1990ish Van Tuyl, 1985 Trek 670, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Competition, 1987 Nishiki Tri-A, 1981 Faggin, 1996 Cannondale M500, 1984 Mercian, 1982 AD SuperLeicht, 1985 Massi (model unknown), 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super, 1971 Raleigh International, 1998 Corratec Ap & Dun, 1991 Peugeot Slimestone
1987 Crest Cannondale, 1987 Basso Gap, 1992 Rossin Performance EL, 1990ish Van Tuyl, 1985 Trek 670, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Competition, 1987 Nishiki Tri-A, 1981 Faggin, 1996 Cannondale M500, 1984 Mercian, 1982 AD SuperLeicht, 1985 Massi (model unknown), 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super, 1971 Raleigh International, 1998 Corratec Ap & Dun, 1991 Peugeot Slimestone
07-23-23, 10:41 AM
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You wont get enough pull unless you run the cable on the other side. There should be a tab that you would run it over on the outside. Increases the leverage quite a bit. Recently put some of these "cheap" levers on an old cruiser for a friend. They actually worked way better than the twist grips he had on there.
