Shimegro: Will This Work?
09-30-15 | 09:22 AM
#1
Thread Starter
Senior Member
Joined: Jan 2006
Posts: 6,566
Likes: 1,065
From: Berwyn PA
Bikes: I hate bikes!
Shimegro: Will This Work?
8 speed Campy brifter and 7 speed index-able IRD (Shimano spaced) freewheel? Is there just an extra click or is there need for a travel agent? I would be using a 9 Speed Shimano rear derailleur.
09-30-15 | 09:57 AM
#2
Senior Member
Joined: Jun 2011
Posts: 2,219
Likes: 104
From: New York, NY
Bikes: Black Mountain Cycles Road and canti MX, Cannondale CAAD12, Bob Jackson Vigorelli
Rear Shifting | CTC
Probably not. If you get a Campy 8 speed rear mech, you will be fine, though.
You could do it, but try an alternate cable routing on the rd. That *might* work.
Probably not. If you get a Campy 8 speed rear mech, you will be fine, though.
You could do it, but try an alternate cable routing on the rd. That *might* work.
09-30-15 | 10:36 AM
#3
multimodal commuter
Joined: Nov 2006
Posts: 19,810
Likes: 597
From: NJ, NYC, LI
Bikes: 1940s Fothergill, 1959 Allegro Special, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1974 Fuji "the Ace", 1976 Holdsworth 650b conversion rando bike, 1983 Trek 720 tourer, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...
Rear Shifting | CTC
Probably not. If you get a Campy 8 speed rear mech, you will be fine, though.
You could do it, but try an alternate cable routing on the rd. That *might* work.
Probably not. If you get a Campy 8 speed rear mech, you will be fine, though.
You could do it, but try an alternate cable routing on the rd. That *might* work.
__________________
www.rhmsaddles.com.
www.rhmsaddles.com.
09-30-15 | 10:40 AM
#4
Senior Member
Joined: Aug 2015
Posts: 93
Likes: 0
From: Peoria, IL
Bikes: 1987 Cannondale ST400, 2003 Bianchi Vigorelli, 1987/88 Schwinn Tempo
Campy and shimano RD's have different pull ratios. This will almost certainly not work. I just went through the same issue changing rear hub cassettes from campy to sram/shimano which meant I had to change the whole rest of the driveline if I wanted indexing.
09-30-15 | 10:42 AM
#5
Cat 6
Joined: Dec 2007
Posts: 7,522
Likes: 236
From: Mountain Brook, AL
That does work, with the [old] Campy RD as TimmyT said. Problem is OP says he wants to use a 9s Shimano RD. No go on the chart - pulls 6.03mm
09-30-15 | 11:10 AM
#6
multimodal commuter
Joined: Nov 2006
Posts: 19,810
Likes: 597
From: NJ, NYC, LI
Bikes: 1940s Fothergill, 1959 Allegro Special, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1974 Fuji "the Ace", 1976 Holdsworth 650b conversion rando bike, 1983 Trek 720 tourer, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...
09-30-15 | 12:26 PM
#8
Extraordinary Magnitude
Joined: Aug 2009
Posts: 14,081
Likes: 2,135
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
Rear Shifting | CTC
The idea of "Shimergo" is that you mix n match incompatible parts and trick them into working with each other.
Sort of like using a 7400 Dura Ace shifter on an Suntour XC Comp Accushift derailleur, on a 5 speed freewheel.
No, it shouldn't work. But it does.
__________________
*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.
09-30-15 | 01:40 PM
#10
Senior Member
Joined: Oct 2005
Posts: 3,904
Likes: 527
From: SW Ohio
Bikes: Puch Marco Polo, Saint Tropez, Masi Gran Criterium
I've got the Campy 8 speed ergo power levers, the matching 8 speed rear dérailleur & planned to use a Shimano 7 speed cassette hub with either a Hyperglide or a Uniglide cassette.
09-30-15 | 01:44 PM
#11
Senior Member
Joined: Oct 2005
Posts: 3,904
Likes: 527
From: SW Ohio
Bikes: Puch Marco Polo, Saint Tropez, Masi Gran Criterium
.... I'm assuming it will index OK.
But could the short cage rear dérailleur wrap enough chain to handle a triple or if not a triple crank, maybe a compact double?
But could the short cage rear dérailleur wrap enough chain to handle a triple or if not a triple crank, maybe a compact double?
09-30-15 | 01:58 PM
#12
Senior Member
Joined: Aug 2015
Posts: 93
Likes: 0
From: Peoria, IL
Bikes: 1987 Cannondale ST400, 2003 Bianchi Vigorelli, 1987/88 Schwinn Tempo
09-30-15 | 03:55 PM
#13
Senior Member
Joined: Aug 2015
Posts: 246
Likes: 0
Bikes: 2015 Cannondale SuperSix EVO 105, 2012 Fuji Roubaix, 1988 Basso Gap
Completely off topic, but I saw you have a 1993 Basso Gap. I have a chance to buy a 1993 Basso Gap (Athena). The bike is in excellent shape - well maintained, clean frame with no defects, and all original components. Is $500 a fair price?
09-30-15 | 05:44 PM
#14
multimodal commuter
Joined: Nov 2006
Posts: 19,810
Likes: 597
From: NJ, NYC, LI
Bikes: 1940s Fothergill, 1959 Allegro Special, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1974 Fuji "the Ace", 1976 Holdsworth 650b conversion rando bike, 1983 Trek 720 tourer, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...
My Gap is a very nice riding bike, that much I do know.
__________________
www.rhmsaddles.com.
www.rhmsaddles.com.
10-01-15 | 08:23 AM
#15
Senior Member
Joined: Aug 2015
Posts: 246
Likes: 0
Bikes: 2015 Cannondale SuperSix EVO 105, 2012 Fuji Roubaix, 1988 Basso Gap
Sorry, but I have no idea! It depends on the condition of the frame/paint, what components it's built with, and other factors. I'm really not an expert in modern bikes (and to me 1993 is very modern). Have you posted the question in the c&v appraisals forum?
My Gap is a very nice riding bike, that much I do know.
My Gap is a very nice riding bike, that much I do know.
Thread
Thread Starter
Forum
Replies
Last Post
TallRider
Bicycle Mechanics
11
09-22-18 08:56 AM
bluenote157
Bicycle Mechanics
5
02-16-10 08:22 AM
