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Old 04-25-11, 09:07 PM   #1
LeicaLad 
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An Ultegra GS vs ??? question

I've spent hours digging thru old posts, but I have a question... please.

I have zero experience with Shimano. I'm C&V, and old stuff. Campy or Suntour. Friction shifting.

Question regards the Ultegra RD-6500 GS.

I've been offered one of these for a reasonable price, and I'm curious. It would replace a Campy Rally RD. I would be using either downtube or Suntour barcons on a 7-speed freewheel rear end. Someday, I might get a bike with a wider back-end, but not yet.

Are there any improvements in shifting?

Is the RD-6500 GS a particularly worthy RD? Was/IS the RD-6600 or RD-6700 worth skipping over this option?

I would appreciate hearing from those who know this RD.

Thank you.
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Old 04-26-11, 12:29 AM   #2
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It is a great rear deraileur like or replaces Shimano 600 and designed for 9 speed rear wheel and the 66 and 67 are 10 speed rear deraileurs for 10 speed rear wheels. I would keep the Campy and it can run 6,7,8 speed just fine.
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Old 04-26-11, 06:15 AM   #3
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It's a nice rd. You may prefer it over the 6600 or 6700 because with those 10 speeds the cage is more narrow.
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Old 04-26-11, 06:22 AM   #4
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Gentlemen,

Thank you. Very helpful. Especially to understand the difference between those models.

I'm not eager to dump the Campy Rally, but curious to try something a bit more modern. Maybe even to try indexed shifting, which I've never used before.

Guess I'll give it a go.

Thank you, again.
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1959 Hilton Wrigley Connoisseur (still my favorite!)
1963 Hetchins Mountain King (the gravel grinder)
1971 Gitane Tour de France (The War Horse)
1971 Gitane Super Corsa (The Garage Queen)
1980 Ritchey Touring (The Grail Bike)
1984 Tom Ritchey Team Competition (NOS show bike)
(replacing the stolen 1981 Tom Ritchey Everest custom)
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Old 04-26-11, 12:41 PM   #5
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Index shifting will have certain compatibility issues to consider.
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Old 04-26-11, 01:49 PM   #6
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Yes. I presume new shifters will be required. Beyond that?

I have some NOS SIS shifters, one pair rated at 7-speed, one pair at 8-speed. Bought them back in the day. Would these work? I presume the RD would have to have it's limit screws set to not throw the cage into the spokes, of course.

Am I missing more?

Thanks.
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1959 Hilton Wrigley Connoisseur (still my favorite!)
1963 Hetchins Mountain King (the gravel grinder)
1971 Gitane Tour de France (The War Horse)
1971 Gitane Super Corsa (The Garage Queen)
1980 Ritchey Touring (The Grail Bike)
1984 Tom Ritchey Team Competition (NOS show bike)
(replacing the stolen 1981 Tom Ritchey Everest custom)
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Old 04-26-11, 04:50 PM   #7
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In my experience it will work with 7 thru 9 speed, index or friction.
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