Experimenting with drivetrain
01-10-23 | 12:24 PM
#1
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ambulatory senior
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From: Peoria Il
Bikes: Austro Daimler modified by Gugie! Raleigh Professional and lots of other bikes.
Experimenting with drivetrain
The suntour Vx-GT will do amazing stuff if 7 speeds is enough. I have odd tastes in cassettes and am experimenting for a future bike build. Current idea is
13-14-16-18-21-28-36. I was wondering what derailleur I would need. Since I have several Vx-GTs I thought I'd give it a shot. Man it just worked perfectly!
7 speeds and the truth right here.
No issue at all climbing this on a 1971 Raleigh professional.
13-14-16-18-21-28-36. I was wondering what derailleur I would need. Since I have several Vx-GTs I thought I'd give it a shot. Man it just worked perfectly!
7 speeds and the truth right here.
No issue at all climbing this on a 1971 Raleigh professional.
01-10-23 | 12:35 PM
#3
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From: Germany
Bikes: 80s Alan Super Record, 79' Somec Special, 90s Rossin(?) Columbus Ego Triathlon, previously: Bianchi SBX Reparto Corse (stolen) and so on...
So its like Shimano Megarange, just beats that? Cool experiment 
01-10-23 | 12:39 PM
#4
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From: Goose Creek, SC
Bikes: More than the people who ride them...oy.
There is no better cheap derailleur ever made to rival the shiny cheapness of the VXs.
Amazing little guys.
Amazing little guys.
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1987 Crest C'dale, 1987 Basso Gap, 1992 Rossin EL, 1990 Van Tuyl, 1985 Trek 670, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Isoard, 1987 Nishiki Tri-A, 1981 Faggin, 1996 C'dale M500, 1984 Mercian Pro, 1982 AD SuperLeicht, 1985 Massi ?, 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super, 1971 Raleigh Internat'l, 1998 Corratec U+D, 1991 Peugeot Slimestone, 1987 Bianchi Volpe, 1995 Trek 750
1987 Crest C'dale, 1987 Basso Gap, 1992 Rossin EL, 1990 Van Tuyl, 1985 Trek 670, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Isoard, 1987 Nishiki Tri-A, 1981 Faggin, 1996 C'dale M500, 1984 Mercian Pro, 1982 AD SuperLeicht, 1985 Massi ?, 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super, 1971 Raleigh Internat'l, 1998 Corratec U+D, 1991 Peugeot Slimestone, 1987 Bianchi Volpe, 1995 Trek 750
01-10-23 | 12:48 PM
#6
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ambulatory senior
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From: Peoria Il
Bikes: Austro Daimler modified by Gugie! Raleigh Professional and lots of other bikes.
01-10-23 | 12:58 PM
#9
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From: Oakland, CA
Bikes: '82 Univega Competizione, '72 Motobecane Grand Record, '83 Mercian KOM Touring, '85 Univega Alpina Uno, '76 Eisentraut Limited
So is your chainline inboard a little bit compared to what is considered normal? Curious for the details since your gearing experiments are consistently interesting and mirror what I need in the hills where I live. Thanks!
01-10-23 | 01:09 PM
#10
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From: Austin,Texas
Bikes: 73 Super Sport, 86 Tempo, 86 Peloton, 87 Super Sport, 83 Peugeot PFN10, 76 Super Course MK IV, 94 Univega Alpina 5.5
I love this setup. Suntour VX-GT is the best. I would love to read more about how you built this freewheel.
Please show us your Crankset, Chainrings and FD also.
Please show us your Crankset, Chainrings and FD also.
01-10-23 | 01:12 PM
#11
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ambulatory senior
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From: Peoria Il
Bikes: Austro Daimler modified by Gugie! Raleigh Professional and lots of other bikes.
Yeah the granny will be as close to the frame as possible.
01-10-23 | 01:15 PM
#12
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ambulatory senior
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From: Peoria Il
Bikes: Austro Daimler modified by Gugie! Raleigh Professional and lots of other bikes.
Just in the experimental stage but the cassette is cobbled together from a 7 speed cassette and spacers with cogs from other cassettes. Since it's friction shifting there is wide latitude for using different cogs.
01-10-23 | 01:36 PM
#13
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From: Portland, OR
Bikes: (2) ti TiCycles, 2007 w/ triple and 2011 fixed, 1979 Peter Mooney, ~1983 Trek 420 now fixed and ~1973 Raleigh Carlton Competition gravel grinder
The amazing thing is that my SunTour (and very Japanese; I presume JIS) Supberbe shifters work well with no modifications on a later, 9-speed Campagnolo (I resume ISO) drivetrain. I don't know how that happened but I'll take it.
01-10-23 | 01:37 PM
#14
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ambulatory senior
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From: Peoria Il
Bikes: Austro Daimler modified by Gugie! Raleigh Professional and lots of other bikes.
01-10-23 | 02:21 PM
#16
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ambulatory senior
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From: Peoria Il
Bikes: Austro Daimler modified by Gugie! Raleigh Professional and lots of other bikes.
01-10-23 | 03:01 PM
#17
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From: SW Ohio
Bikes: Puch Marco Polo, Saint Tropez, Masi Gran Criterium
Huret Duopar with its unique 2 stage pulley cage could handle a spread like this I believe. I got rid of my eco-duopar since that upper pulley squealed for lack of lube and I could find no way to service it.
01-10-23 | 03:03 PM
#18
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From: Menomonee Falls, WI
Bikes: 1984 Schwinn Supersport, 1988 Trek 400T, 1977 Trek TX900, 1982 Bianchi Champione del Mondo, 1978 Raleigh Supercourse, 1986 Trek 400 Elance, 1991 Waterford PDG OS Paramount, 1971 Schwinn Sports Tourer, 1985 Trek 670
Good to know, Thanks!
Tim
Tim
01-10-23 | 03:19 PM
#19
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ambulatory senior
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From: Peoria Il
Bikes: Austro Daimler modified by Gugie! Raleigh Professional and lots of other bikes.
I have an eco but it's a bit rarer so I'd rather not use it. Great derailleur though.
01-10-23 | 03:51 PM
#20
Extraordinary Magnitude
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From: Waukesha WI
Bikes: 1978 Trek TX700; 1978/79 Trek 736; 1984 Specialized Stumpjumper Sport; 1984 Schwinn Voyageur SP; 1985 Trek 620; 1985 Trek 720; 1986 Trek 400 Elance; 1987 Schwinn High Sierra; 1990 Miyata 1000LT
It's amazing how "right" Suntour got it 50 years ago.
We don't see a lot of the "show your favorite derailleur for touring" or whatever threads these days- but the V-GT Luxe was THE dominant RD for 15 or so years- up until the M730 XT units- and might even have more range than those SGS units.
We don't see a lot of the "show your favorite derailleur for touring" or whatever threads these days- but the V-GT Luxe was THE dominant RD for 15 or so years- up until the M730 XT units- and might even have more range than those SGS units.
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Commence to jigglin’ huh?!?!
"But hey, always love to hear from opinionated amateurs." -says some guy to Mr. Marshall.
Commence to jigglin’ huh?!?!
"But hey, always love to hear from opinionated amateurs." -says some guy to Mr. Marshall.
01-10-23 | 03:52 PM
#21
feros ferio
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From: www.ci.encinitas.ca.us
Bikes: 1959 Capo Modell Campagnolo; 1960 Capo Sieger (2); 1962 Carlton Franco Suisse; 1970 Peugeot UO-8; 1982 Bianchi Campione d'Italia; 1988 Schwinn Project KOM-10;
I am not surprised that this works well, since 14-34 was a very common Nishiki 5-speed freewheel during the 1970s, and the SunTour VGTs of the day handled it with aplomb.
What really surprised one of my coworkers was that the old VGT I gave him worked well on his daughter's indexed Shimano 7-speed setup, better than the original Shimano she had destroyed in a crash.
What really surprised one of my coworkers was that the old VGT I gave him worked well on his daughter's indexed Shimano 7-speed setup, better than the original Shimano she had destroyed in a crash.
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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
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
"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
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
01-10-23 | 03:59 PM
#22
Thread Starter
ambulatory senior
Joined: Dec 2016
Posts: 6,451
Likes: 4,515
From: Peoria Il
Bikes: Austro Daimler modified by Gugie! Raleigh Professional and lots of other bikes.
I am not surprised that this works well, since 14-34 was a very common Nishiki 5-speed freewheel during the 1970s, and the SunTour VGTs of the day handled it with aplomb.
What really surprised one of my coworkers was that the old VGT I gave him worked well on his daughter's indexed Shimano 7-speed setup, better than the original Shimano she had destroyed in a crash.
What really surprised one of my coworkers was that the old VGT I gave him worked well on his daughter's indexed Shimano 7-speed setup, better than the original Shimano she had destroyed in a crash.
01-10-23 | 04:08 PM
#23
Extraordinary Magnitude
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From: Waukesha WI
Bikes: 1978 Trek TX700; 1978/79 Trek 736; 1984 Specialized Stumpjumper Sport; 1984 Schwinn Voyageur SP; 1985 Trek 620; 1985 Trek 720; 1986 Trek 400 Elance; 1987 Schwinn High Sierra; 1990 Miyata 1000LT
I am not surprised that this works well, since 14-34 was a very common Nishiki 5-speed freewheel during the 1970s, and the SunTour VGTs of the day handled it with aplomb.
What really surprised one of my coworkers was that the old VGT I gave him worked well on his daughter's indexed Shimano 7-speed setup, better than the original Shimano she had destroyed in a crash.
What really surprised one of my coworkers was that the old VGT I gave him worked well on his daughter's indexed Shimano 7-speed setup, better than the original Shimano she had destroyed in a crash.
__________________
*Recipient of the 2006 Time Magazine "Person Of The Year" Award*
Commence to jigglin’ huh?!?!
"But hey, always love to hear from opinionated amateurs." -says some guy to Mr. Marshall.
Commence to jigglin’ huh?!?!
"But hey, always love to hear from opinionated amateurs." -says some guy to Mr. Marshall.
01-10-23 | 04:14 PM
#24
Edumacator
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From: Goose Creek, SC
Bikes: More than the people who ride them...oy.
Get rid of effect of cable stretch?
__________________
1987 Crest C'dale, 1987 Basso Gap, 1992 Rossin EL, 1990 Van Tuyl, 1985 Trek 670, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Isoard, 1987 Nishiki Tri-A, 1981 Faggin, 1996 C'dale M500, 1984 Mercian Pro, 1982 AD SuperLeicht, 1985 Massi ?, 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super, 1971 Raleigh Internat'l, 1998 Corratec U+D, 1991 Peugeot Slimestone, 1987 Bianchi Volpe, 1995 Trek 750
1987 Crest C'dale, 1987 Basso Gap, 1992 Rossin EL, 1990 Van Tuyl, 1985 Trek 670, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Isoard, 1987 Nishiki Tri-A, 1981 Faggin, 1996 C'dale M500, 1984 Mercian Pro, 1982 AD SuperLeicht, 1985 Massi ?, 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super, 1971 Raleigh Internat'l, 1998 Corratec U+D, 1991 Peugeot Slimestone, 1987 Bianchi Volpe, 1995 Trek 750
01-10-23 | 04:19 PM
#25
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