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Educate me on Campy cranksets, please ...(5 posts)
|Educate me on Campy cranksets, please ...||Humma Hah|
Jun 21, 2002 4:00 PM
|... keeping in mind I'm used to 1-piece BMX cranks and cruiser BB's, with chromed-steel chainwheels driven by a pin on the crank.
CyclArt has hooked me up with one of their wrenches, who's building up his own '71 Paramount. He's scrounged some parts up which he thinks will fit my bill, but he's confusing the heck out of me.
"found some stuff. got a nos bottom bracket campy Mirage for $15."
"Nuovo Record Track crank set with a 48 tooth chain ring 165mm Pista no date code $125."
He says all their stock is listed on their web store, but I'll be darned if I can find the items above. I'm also confused by the mix of line names above. I'm not at all familiar with Campy Mirage, know Nuovo Record stuff gets some respect, thought Pista was a special line of very pricy track stuff distinct from Nuovo Record. The best I can figure is this is 165mm Nuovo Record Crankarms with a 48T Pista chainring, which hopefully will go on a Mirage BB.
I'm seeing so many Campy lines I'm getting a headache. Which are which? I've seen --
The chainrings mount differently, 5 and 6-arm stars, and various other schemes, make me inclined to be very careful selecting parts that must fit together.
|re: Educate me on Campy cranksets, please ...||Walter|
Jun 21, 2002 5:34 PM
|Ok. Mirage is modern. It's Campy's current entry level. As modern it'll be a cassette style BB as opposed to separate races,bearings and spindle. Easier to install but not serviceable. When it finally goes, it's gone. Having said that $15 ain't a bad price, it'll spin smooth and noone sees a BB anyways. Pista is indeed the designation for track. The NR designation in front of "Pista" tells us it isn't the really old track stuff or whatever the current Campy track gruppo is. To me adding "NR" is redundant. I think but am not 100% that the Pista chainwheels are not interchangeable with the road setups. Others will confirm/deny. $125 is not a bad price for Campy Pista but you could convert a road crank for less. Your call.|
Jun 21, 2002 8:25 PM
|NR pista designates that it will have a 151 bcd. these chainrings are scarce and pricey and neither is usable if you ever decide to use it for roadwork which is a 144bcd
maybe more alarming is whether the mirage BB will work with the older cranks. perhaps so as it is a pista crank but for road cranks there is either phil wood with custom offsets or original stock campy which if in good condition is pricey. offsets between new and old are different ...... muy importante to consider.
i am hesitant to think that the drivetrain pieces will all fit. even if they do im not sure your chainline will be right as the older crank should be around 40.5mm whilst the newer hubs you plan to use run the current track chainline of 42mm...... all these things should be ironed out and thought of before you go any further.
some reading to consider
sadly a diagram/schematic showing the different offsets is no longer hosted. think some of what i mentioned through as mating modern with old is tricky and needs somebody with a lot of experience in these matters. i only know a little but my alarm bells are ringing.
|151 vs 144 bcd ...||Humma Hah|
Jun 24, 2002 10:55 AM
|... is this the 3/32 "road" versus 1/8 track/singlespeed chain width issue? The only reason I can see to use the narrower pitch is if I might switch back to a derailleur, and I'm hoping I'll not be forced to do that for another couple of decades. I've singlespeeded (with the 1/8" width chains) for about 43 years now, and still love it. If I get old and decrepit, the bike is a road frame with all the appropriate bosses for a der, and I'll swap out the parts when the time comes. Until then, I'm counting on the two old Schwinns to keep me young.
I reviewed Sheldon's articles again ... had not read the chain alignment stuff for about a year. No big changes ... fiddle with spacers and line it up. We'll see how it goes. I'm more worried about the rear wheel, if the flip-flop dished for one side will still center well flipped to the other side.
|re: Educate me on Campy cranksets, please ...||Trent in WA|
Jun 21, 2002 8:34 PM
I assume you've read, studied, and committed to memory all the material available on fixed gear setups from Sheldon Brown at http://sheldonbrown.com/fixed/index.html? If you rummage around his site, you'll probably find lots of info on the various vintages of Campy stuff. Alternately, you can look at www.campyonly.com. The short version is that Record, Chorus, and Mirage are modern Campy gruppos, with Record being the highest of high-zoot, Chorus being the next line down (and arguably the best value), and Mirage being one of the entry-level Campy gruppos--but still quite nice. Pista is the Campy track gruppo. I don't know anything about Victory. Nuovo Record is the classic 60s-70s Campy top-of-the-line hardware.
Hope this helps,