RoadBikeReview.com's Forum Archives - Components


Archive Home >> Components(1 2 3 4 5 6 7 8 9 10 )


Old Campy Cranks Work With 10 speed!--long(8 posts)

Old Campy Cranks Work With 10 speed!--longFignons_ponytail
Mar 15, 2002 4:14 AM
A few weeks ago I said I'd post once I had an answer to the question of whether old campy cranks work with the new 10 speed system. Here it is...

Yes! Maybe it's just me, but I really don't like the aesthetics of the newer campy cranks. I have all of the older campy cranks--C-record, Chorus, and Athena--and think their looks kill the newer ones. That, and their weights are the same or lighter. So, when I was building up my Tommasini Diamante frame, I really wanted to use the old Chorus cranks. They are as light as the new Record cranks, and I think the lines on them are just beautiful.

At first I tried the old Chorus cranks with their stock chainrings. Believe it or not, they shifted passably well with enough tinkering of the front derailleur (including removing the 10 speed plastic insert). The main problem seemed to be that the new front derailleur cage profile is optimized for the newer style large chainrings with the pins/ramps in them. Since the chainrings were fairly worn, I picked up a Daytona 10 speed crank for the rings--cheaper than buying two new rings, go figure.

First, I mounted the Daytona crank on the bike. As expected, after adjusting the front derailleur exactly as called for in the directions, everything shifted perfectly. Well, I took the rings off of both the old Chorus and new Daytona crank and pulled out the calipers to measure the mounting points of where the rings sandwich onto the arms. Both measured at exactly 3.8mm!! Yup, identical. The inner chainrings also appeared to be identical. The outer rings were clearly different, with the newer 10 speed ring having the pins, ramps, and a slightly thinner mounting area.

Well, to cut this short, I mounted the new campy rings to the old Chorus crankset, put it on the bike, and it shifts flawlessly and every bit as quickly as when the new Daytona crank was used.

Next step, a new 10 speed ring for my C-Record crank!! (sort of makes those $50 C-Record cranks on Ebay a bargain, especially since the new Record sealed bottom brackets are available in a spindle length of 111mm...)
show me the $50 c-record cranks - ill take 5Spirito di Finocchio
Mar 15, 2002 9:49 AM
yes its true... i had also though what a brilliant design dating back from 1985 that its still able to be used with 6,7,8,9 speed with great success and with its classic elegance. the best ever crank in my opinion and i would go close to calling it the best component ever made.

and that apart from a few washers or even a new chainring they can work with 10 speed is a testament to their design even if used with the pista bottom bracket which in form and functio is no different to the original c-record item.

i think vecchio's in colorado can get some new old stock "century" finish cranks but they aint cheap. i havent seen good condition c-record cranks with rings sell for anywhere near $50. and yes few know just how close their weights to the current series of cranks are - i cant comment on their stiffness as i cant really detect a difference.

in fact the whole group is bike art that you can use.
There are a couple of pairs of C-Rec Cranks on E-Bay right now...Pedal Jockey
Mar 15, 2002 11:35 AM
One pair of 170's is currently at $50.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1812211727

PJ
re: Old Campy Cranks Work With 10 speed!--longgrandemamou
Mar 15, 2002 12:17 PM
Yeah, the finish on the newer cranks and hubs are kind of dull. A c-record crank is a beautiful piece of equipment.
111mm bottom bracket may not work...C-40
Mar 15, 2002 2:17 PM
This new BB for the Record 10 triple is "offset" according to the campy website. It won't produce the same chainline as a 111mm Daytona BB.

The 10 speed big ring's mounting surface is machined to move it slightly closer to the little ring. The little ring and the crank's mounting surfaces were not changed. This was well advertised when the 10 speed group came out over two years ago. No news here.
i thought so as well but.....Spirito di Finocchio
Mar 15, 2002 3:34 PM
after hearing of a few who used it instead of the pista bb and after the note from the following..

Quote
"Tasked to install a Record triple gruppo(obtained in Italia by the customer) on a Gios today-took a few minutes with a AC-H(111mm) and AC-H(115.5mm) BB and Centaur and Veloce crank and played some mix and match with the Record triple stuff.

Installed the AC-H(111mm) and tested the Record triple crank-no problema(28.6mm seattube)-the Record BB puts the crank a wee bit father from the seatube tho(maybe 2mm).

Tested the AC-H(115.5mm) with the Record triple, again, no problem, will work fine with seatubes of 31.8mm and 34.9mm(fder inward travel)

Lastly, tried the Record triple(111mm) BB with the Centaur and Velcoe crank(doubles) and works just fine, even showing the same q-factor and chainline as the AC-H(111mm). For the life of me I cannot see what makes the Record BB 'assymetric'.

So good news for those that want to use this BB with lower end cranks and also older(1994 and older) Record and Chorus cranks..

OBTW-very nice execution of the BB and crank-pretty...

Peter Chisholm
Vecchio's Bicicletteria
1833 Pearl ST.
Boulder, CO, 80302
(303)440-3535
http://www.vecchios.com "

end of quote

checking on branford bike "Now available in a 111 mm symmetrical version to fit mid 1980's to1994 C Record, Record and Chorus cranks and current track cranks. The 111 mm symmetrical version is identical to the 102 mm version except for the length of the bottom bracket spindle. The bearings and cups are double sealed, just like the 102 mm version."

so now there is a symmetrical and asymmetrical version of the record 111mm bottom bracket - which explains all the different theories.

life couldnt be better for c-record crank owners.
does it work on daytona cranks?colker
Mar 15, 2002 6:10 PM
branford catalog doesn't mention but..if it's the same taper and length, why not?
it would be nice to get rid of 165 gr. of bb fat.
yep....Spirito di Finocchio
Mar 15, 2002 9:49 PM
http://www.branfordbike.com/bottombr/bb1.html#item1

your looking for the 111mm symmetrical bb. (4th paragrapgh down i think)

if you are after something a little more longer lasting just use the pista bb (230g) and replace the bearings every year. if your good abou servicing it you'll get a lot of miles from it.

either way there are a lot of options.