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Old 01-31-11, 01:55 PM   #1
-holiday76
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Campy 8 sp gearing Options - how low can you go and stay campy?

What's the lowest gearing I can get with campy ergo 8 speed? Can the rear mech handle a 28t? Can I even find a 8 speed cassette in 28t that works with campy indexing?

I'm running 53/39 in the front. I'd like to run a 28 tooth cog in the rear but it looks like I might be stuck with 26. I have not purchased a rear derailleur yet but I wanted to stick with campy.
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Old 01-31-11, 02:06 PM   #2
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I know Miche makes a 13-28 cassette for campy 8 speed. I don't know any campy 8 speed derailleurs will work with 28t cog. My guess is, it will probably work.
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Old 01-31-11, 02:28 PM   #3
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+1, I think abarth is correct.

The chain tension should pull it down far enough to clear.
The only problem I see is on the small ring, 28t cog, with possible coziness of the upper pulley and cog.
I still think it will work. I'll check my Chorus and guesstimate.

The 97 Bianchi Trofeo came with Miche cassettes, and I think the double had a 26t low gear.
I wouldn't be surprised if it goes 28t (Avanti).
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Old 01-31-11, 02:28 PM   #4
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I have a Racing-T rear that looks like it can handle 28 easily.
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Old 01-31-11, 02:31 PM   #5
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Bump. I'm interested too. I'd like to get my hands on some Ergopower stuff to try out this new fangled integrated shifter/brake lever mess.
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Old 01-31-11, 02:36 PM   #6
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looks like the Miche campy splined 8sp 28t cassette is the way to go. I can only find one place that has it though, and it's in the UK. Anyone have any more local leads on where to get these?
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Old 01-31-11, 02:59 PM   #7
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looks like the Miche campy splined 8sp 28t cassette is the way to go. I can only find one place that has it though, and it's in the UK. Anyone have any more local leads on where to get these?
eBay
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Old 01-31-11, 03:05 PM   #8
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eBay
that's a good lead but they don't have any at the moment.
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Old 01-31-11, 03:06 PM   #9
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I order from the UK all the time, never a problem.
Me too, I'd just rather not have to pay twice the shipping price if I don't have to. Might not have a choice here though.
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Old 01-31-11, 04:36 PM   #10
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Bump. I'm interested too. I'd like to get my hands on some Ergopower stuff to try out this new fangled integrated shifter/brake lever mess.
What?!?
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Old 01-31-11, 06:06 PM   #11
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I have not purchased a rear derailleur yet but I wanted to stick with campy.
You don't say what type of RD you would consider, but if you are willing to go modern, you can get a medium or long cage modern 10 speed RD and it will index with 8 speed, or a 7 speed freewheel, for that matter. I do this with a long cage and a 34T on my wife's bike, and a medium cage on a 28T on one of my bikes. A 7 speed freewheel opens a lot more possibilities.
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Old 01-31-11, 07:00 PM   #12
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What?!?
What can I say, I'm a curious guy.
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Old 01-31-11, 07:34 PM   #13
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I have found that thicker chains will rub on the RD cage with at least some Campy RD's.
Yes, I use 9 speed chain, but 8 speed works on my wife's bike. I don't know whether this affects an 8 speed crank, as my cranks are ten speed also.
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Old 02-01-11, 08:10 AM   #14
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You don't say what type of RD you would consider, but if you are willing to go modern, you can get a medium or long cage modern 10 speed RD and it will index with 8 speed, or a 7 speed freewheel, for that matter. I do this with a long cage and a 34T on my wife's bike, and a medium cage on a 28T on one of my bikes. A 7 speed freewheel opens a lot more possibilities.
explain this please. How will a 10 sp mech index with my 8 speed stuff? Will it just have two extra clicks that dont do anything assuming I set the limit screws for my 8 speed cassette? This is an option I'd consider as I didnt realize this would work....
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Old 02-01-11, 10:40 AM   #15
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explain this please. How will a 10 sp mech index with my 8 speed stuff? Will it just have two extra clicks that dont do anything assuming I set the limit screws for my 8 speed cassette? This is an option I'd consider as I didnt realize this would work....
There are no clicks on a rear derailleur. It's just a matter of the throw, and it has plenty.

I use 8 Speed Ergo's so I can keep my stock wheels with a 7 Speed freewheel. I use a ten speed derailleur for two reasons: 1) It's brand new so I don't have to worry about banged up or a glitchy RD, and 2) it's easy to find a long cage derailleur, unlike with old Campy stuff.

I've used Veloce and Chorus RD. The Chorus is a little more picky about the chain, as OFG mentions.

It doesn't look vintage, but RD's hang out in space, waiting fro the bike to fall or lean against something. I hate crappy shifting, so I won't waste my time with used derailleurs. I want something I _know_ is perfect.
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Old 02-01-11, 11:01 AM   #16
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There are no clicks on a rear derailleur. It's just a matter of the throw, and it has plenty.

I use 8 Speed Ergo's so I can keep my stock wheels with a 7 Speed freewheel. I use a ten speed derailleur for two reasons: 1) It's brand new so I don't have to worry about banged up or a glitchy RD, and 2) it's easy to find a long cage derailleur, unlike with old Campy stuff.

I've used Veloce and Chorus RD. The Chorus is a little more picky about the chain, as OFG mentions.

It doesn't look vintage, but RD's hang out in space, waiting fro the bike to fall or lean against something. I hate crappy shifting, so I won't waste my time with used derailleurs. I want something I _know_ is perfect.
oh right, the clicks are in the shifter. I didnt completely think that through.

So you're saying an 8 speed ergo will index correctly on top of a 7 spd freewheel? Now in that case there would be an extra click yes? I'd need to run a different wheel since I can't put a 7 sp freewheel on my campy 8 sp hub though, right?
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Old 02-01-11, 11:35 AM   #17
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You don't say what type of RD you would consider, but if you are willing to go modern, you can get a medium or long cage modern 10 speed RD and it will index with 8 speed, or a 7 speed freewheel, for that matter. I do this with a long cage and a 34T on my wife's bike, and a medium cage on a 28T on one of my bikes. A 7 speed freewheel opens a lot more possibilities.
Correct me if I'm wrong, but starting with the "next generation" 9 speed stuff (rounded ergo lever hoods + screened on '9 Speed' label) the actuation ratio was changed. So, 8 speed ergos might not mesh perfectly with a 10 speed RD. My guess is it might work well for a while, but as things wear, you might begin to experience shifting trouble? Maybe I'm completely wrong, because I know things that aren't supposed to work often do.

But yes, 8 speed spacing on a Campy cassette is identical to Shimano 7 speed spacing, so you can use a Shimano compatible 7 speed cassette with 8 speed ergos. You just have to live with a ghost click. And 7 speed cassettes can be fitted on modern 8/9/10 Shimano freewheels with a spacer.
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Old 02-01-11, 11:48 AM   #18
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But yes, 8 speed spacing on a Campy cassette is identical to Shimano 7 speed spacing, so you can use a Shimano compatible 7 speed cassette with 8 speed ergos. You just have to live with a ghost click. And 7 speed cassettes can be fitted on modern 8/9/10 Shimano freewheels with a spacer.
i have heard that before but forgot about it. That's great! I already have a suitable shimano 7 sp wheelset, so I just need to get a 28t large 7 sp cassette and a new campy medium cage mech and I'm set. Awesome!
The ghost click doesnt bother me.
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Old 02-01-11, 12:43 PM   #19
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i have heard that before but forgot about it. That's great! I already have a suitable shimano 7 sp wheelset, so I just need to get a 28t large 7 sp cassette and a new campy medium cage mech and I'm set. Awesome!
The ghost click doesnt bother me.
Really, all a medium cage does is take up extra chain slack on a setup where there is a small (granny) front ring. People have reported successfully using Nuovo Record RD's on 28T cogs, so you're 8sp short cage RD might work. You're not running a granny ring on the front, so you're unlikely to need that much slack pickup.
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Old 02-01-11, 12:45 PM   #20
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But if you do decide to go with a medium cage, this guy at Serotta forums has an 8 speed Campy Racing T RD offered in a package deal with some shifters. Maybe you can beg the buyer to sell it to you.

http://forums.serotta.com/showthread.php?t=85035
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Old 02-01-11, 12:45 PM   #21
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Right, I know what the longer cage does. I dont own an 8 sp short cage rd, or you can bet i'd be trying that.
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Old 02-01-11, 12:47 PM   #22
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Right, I know what the longer cage does. I dont own an 8 sp short cage rd, or you can bet i'd be trying that.
Oh yeah, just reread your first post. Doh!
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Old 02-01-11, 12:50 PM   #23
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I have a Racing-T rear that looks like it can handle 28 easily.
I can confirm this, having running one on a 28T cassette.
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Old 02-01-11, 01:34 PM   #24
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With all this discussion about Miche cassettes, can anyone vouch for the reliability and shifting compatibility of these cassettes over a decent length of time with Campy drivetrains, 8-speed or 9-speed?

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Old 02-01-11, 02:25 PM   #25
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