Mavic/Campy play well together?
07-08-13, 09:21 AM
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Mavic/Campy play well together?
Hi -
I've got a bit of a Frankenbike that is mostly 8-speed Campy Chorus, but with some Mavic and DA. I'd like to switch out the Mavic cranks for some matching Chorus, but I suspect the bottom bracket is made by Mavic as well. Will I be able to install Campy cranks on a Mavic BB, or will the BB have to come out as well? Thanks all,
Bob
I've got a bit of a Frankenbike that is mostly 8-speed Campy Chorus, but with some Mavic and DA. I'd like to switch out the Mavic cranks for some matching Chorus, but I suspect the bottom bracket is made by Mavic as well. Will I be able to install Campy cranks on a Mavic BB, or will the BB have to come out as well? Thanks all,
Bob
07-08-13, 09:42 AM
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Depending on the Chorus, it would want an ISO taper 102 mm BB or an ISO taper 111 mm BB ( know I'm right about the newer ones and the 102, but less certain about the older ones and the 111!). I don't know what taper Mavic wants.
07-08-13, 09:43 AM
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8-speed vintage Campy is square taper.. If Mavic is square taper, try the new crankset on for size after noting where the chainline is now and comparing it with the new setup. It probably won't match up because different cranks have usually have different distances from the centerline even when using the same spindle. If things don't work out, you will have to get a new bb. Velo Mine should be able to help with one that works.
By the way, it is totally OK to keep the Mavic crankset with Campy drivetrain if it works. In the day, it was just as common to mix and match as it was to go all one brand. The Frankenbike term is unfortunate
and can be offensive to people who make an art of matching components optimized with the best from different companies. Many of us prefer the term optimized to frankenbike.
-Tom
By the way, it is totally OK to keep the Mavic crankset with Campy drivetrain if it works. In the day, it was just as common to mix and match as it was to go all one brand. The Frankenbike term is unfortunate
and can be offensive to people who make an art of matching components optimized with the best from different companies. Many of us prefer the term optimized to frankenbike.-Tom
07-08-13, 09:50 AM
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By the way, it is totally OK to keep the Mavic crankset with Campy drivetrain if it works. In the day, it was just as common to mix and match as it was to go all one brand. The Frankenbike term is unfortunate and can be offensive to people who make an art of matching components optimized with the best from different companies. Many of us prefer the term optimized to frankenbike.
-Tom[/QUOTE]
Point taken. That being said, any thoughts on early-90s vintage Campy Chorus vs Mavic cranks?
and can be offensive to people who make an art of matching components optimized with the best from different companies. Many of us prefer the term optimized to frankenbike.-Tom[/QUOTE]
Point taken. That being said, any thoughts on early-90s vintage Campy Chorus vs Mavic cranks?
07-08-13, 09:57 AM
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What's not clear is whether the Mavic takes JIS square taper or ISO square taper. The Campy is absolutely ISO. In some cases it works out well to use a JIS BB with a Campy crank and in some cases not. I have done test fittings with this "optimization" and not seen any big problem, but I usually go back to pairing Campy with Campy - just a little OCD I guess.
The required BB spindle length it also an important question. Chainline seems not to matter for some "optimizers," but I like to have it right and have seen issues when it is not, in terms of shifting correctly at the extremes. I don't seem to be able to remember not to cross-chain, even after 40+ years in the saddle.
The required BB spindle length it also an important question. Chainline seems not to matter for some "optimizers," but I like to have it right and have seen issues when it is not, in terms of shifting correctly at the extremes. I don't seem to be able to remember not to cross-chain, even after 40+ years in the saddle.
Last edited by Road Fan; 07-08-13 at 10:48 AM. Reason: 2nd paragraph, "crankset" changed to "BB spindle."
07-08-13, 10:44 AM
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What's not clear is whether the Mavic takes JIS square taper or ISO square taper. The Campy is absolutely ISO. In some cases it works out well to use a JIS BB with a Campy crank and in some cases not. I have done test fittings with this "optimizations" and not seen any big problem, but I usually go back to pairing Campy with Campy - just a little OCD I guess.
The required crankset length it also an important question. Chainline seems not to matter for some "optimizers," but I like to have it right and have seen issues when it is not, in terms of shifting correctly at the extremes. I don't seem to be able to remember not to cross-chain, even after 40+ years in the saddle.
The required crankset length it also an important question. Chainline seems not to matter for some "optimizers," but I like to have it right and have seen issues when it is not, in terms of shifting correctly at the extremes. I don't seem to be able to remember not to cross-chain, even after 40+ years in the saddle.
OP, are you going with indexed 8-speed? If so, later 8-speed Campy cranksets (late '90s) had noticably better shifting. Also, the left Campy shifters are not truly indexed but have a racheting mechanism which works nicely with a range of cranks, so exact vintage isn't crucial.
07-08-13, 05:23 PM
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The one thing "absolutely certain" when it comes to square-taper cranks and spindles is how LITTLE is absolutely certain.
Mavic is said to be ISO and Campagnolo is, too...however...
according to Sutherlands the varying dimension (the taper end) when actually measured has Campy ends falling in between ISO and JIS, and there's always tolerance within the ISO standard (which is the only standard with a published tolerance range) and for the others (Ofmega, Zeus, Campy and even JIS) anything goes. There might be a range but it isn't published and samples vary (as expected).
So, expect the Mavic "ISO" spindle to be close to, maybe slightly smaller than, the Campy and test fit to be sure.
Mavic is said to be ISO and Campagnolo is, too...however...
according to Sutherlands the varying dimension (the taper end) when actually measured has Campy ends falling in between ISO and JIS, and there's always tolerance within the ISO standard (which is the only standard with a published tolerance range) and for the others (Ofmega, Zeus, Campy and even JIS) anything goes. There might be a range but it isn't published and samples vary (as expected).
So, expect the Mavic "ISO" spindle to be close to, maybe slightly smaller than, the Campy and test fit to be sure.
07-09-13, 10:10 AM
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Good Lord -
I suspected the answer to this question wouldn't be a simple yes or no. Concerning bikes, it so rarely is. I'm not sure that a mostly cosmetic upgrade (I'm sure the Mavic crank now on the bike is a perfectly respectable component) is going to be worth all that work. But that's one reason why I consulted you folks in the first place. Thanks for all your help and I've learned quite a bit here. Regards,
Bob
I suspected the answer to this question wouldn't be a simple yes or no. Concerning bikes, it so rarely is. I'm not sure that a mostly cosmetic upgrade (I'm sure the Mavic crank now on the bike is a perfectly respectable component) is going to be worth all that work. But that's one reason why I consulted you folks in the first place. Thanks for all your help and I've learned quite a bit here. Regards,
Bob
