Nuovo Record

Is there a manufacturer or a source for 135 BCD chain rings that fit (early) Campagnolo C-Record road cranks (3/32)?

Thank you!

Germany_chris

Have you checked TA Specialties

repechage

Is Google down?

note on the Campagnolo 135 there are two flavors at least, for Corsa Record and for The subordinate groups ( 5 front exposed chainring fasteners )

rustystrings61 

I can second the quality of T.A.’s 135 bcd rings - I used one of their 45T for years on my fixed-gear.

P!N20

I'm wondering since you asked specifically for C-Record chainrings you want the retainer pin in the right place (eg; aligned with the crank arm) and/or the knurled nut for the hidden bolt?

If so, nobody is making them (afaik) so hit up your favourite used parts dealers. How many teeth are you after? Some sizes seem more available than others.

If not, then TA Specialties as mentioned above is your best bet. Still might be worth checking the second hand market as the older TA rings looked pretty similar to the Campy jobs.

If you don't have a knurled nut you can use the sleeved part of a track nut with Loc-tite.

verktyg 

Google? What's that?


I'm not an expert on these barely C&V 135mm Campy cranks but here's what I came up with:

Aluminum C-Record cranks are easy to identify because there are only 4 chainring bolts visible from the outside. The 5th is located on the inside behind the crank arm and screws into it.



Note the pin at the bottom of this C-Record chainring is inline with the mounting bolt hole.



The other model Campy cranks that use 135mm chainrings have all 5 bolts accessible from the outside: Chorus, Croce d'Aune and so on.



In putting together Campy cranks with 135mm chainrings, I ran across some of the older ones stamped "AS" along with the number of teeth. I came to the conclusion that these were for non-C-Record cranks. Maybe I'm wrong?



Having the 5th chainring mounting on the back side of the crank arm makes no sense to me. All it does is makes changing rings more difficult...

Perhaps the C-Record cranks were designed by Italian fashion designers - image is every thing!

verktyg

repechage

Corsa Record is why Shimano ate Campagnolo's lunch.

Style before weight, function, substance.
And I am a Campagnolo fan.

The initial C Record front mech. was very easy to overshift with, partly due to the absurd location of the mount bolt.
Remedied later. when there was an overshift, on the previous Record formfactor cranks, the chain caught on the arm near the spyder, on the Corsa Record, it would drop down to the pedal... no shifting back, one dismounted, got at least one finger greasy, then chased the group.
the 3/16" bearing bottom bracket... the Delta brakes... at least three designs. (Colbalto as a stop gap measure...!?!)

the C Record high flange hubs are super stylish but fragile.
We will ignore the SGR pedals.

P!N20

Not really, there's still a spider arm, it's just located behind the crank arm. The chainring should have a knurled nut in the chainring which the male chainring bolt screws into. If it doesn't you can use the female half of a track chainring bolt which is thin enough to slide between the crank arm and mounting tab - you'll need to use Loc-tite as you can't tighten it up from both sides.

Campagnolo? Nooooo. ​​​​​​​

verktyg 

I was trying to provide the OP with enough info so that they could find the correct chainrings for their crank not re-explain the reinvention of the wheel....

Also to help folks visualize what repechage aptly described. A picture is worth....


Here's a better diagram...



For the price of those original Campy C-Record cranks, Campy should have provided a nice Italian designer silk sports coat!

Ah, excuse me, Mr Shimano we have an opening for you...

verktyg

P.S. a few years back when I crawled out of the C&V stone age, I had to figure out all of the intricacies of Campy 135mm chainrings through trial and error. Couldn't find any graphic help.

Ned Lud

P!N20

The magic knurled nut, part number 7161023 - image taken from the drive side. Note the hole where the the chain guard pin would have been.

Lazyass

Here's one, they may have more.

https://***********************/nos-ca...t-x-135mm-bcd/

verktyg 

Again I ask, how many teeth CRs are you looking for.

I have some with low mileage or NOS Campy chainrings that I can make you a deal on.

verktyg

repechage

Merckx sized.

Nuovo Record

Thanks a lot for all the knowledgeable replies. Much appreciated!

- I believe the "AS" chainrings were for later versions of the C-Record cranks, for 8/9 speed set-ups. Not sure what really was the difference.

- I seem to remember that I once mounted a C-Record chainring using a "regular" bolt instead of the "other" one. I think I just placed it the other way round and fixed it with the help of that tiny fork-shaped tool from the Campagnolo tool box. Or did I dream that?

- There is another "so beautiful but quite useless" C-Record component: the strada pedals with the toestraps.

The C-Record group always seemed a bit "unfinished" to me. I still love the looks, though. Was this group still designed by Tullio Campagnolo?

Nuovo Record

What do you think of this type?

https://www.ebay.de/itm/224373998024...MAAOSwhXBfX5bJ

P!N20

Aesthetically - not much, but would have to see them on the cranks.

Looks like they're cut from flat plate, so I'm not sure how the shifting will be with no ramp, but looking at mine there's barely any ramp anyway, so maybe it won't matter.

verktyg 

Sorta like mounting farm tractor wheels on a Ferrari!

It will probably be functional but so would a rusty old steel chainring. Bent nails would be great for mounting it too.

Beware, this is a forum populated by a lot of folks for whom aesthetics are all important not some kind of rescue mission for wayward bikes.

On some sites that chainring could get you mercilessly flamed.

PS if the OP would have responded to my messages he may have scored himself some C-Record chain rings FREE! Those thing happen here on BF C&V! Pay it forward...

verktyg Old and getting crankier!