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Sunday, September 26, 2010

Campagnolo C Record delta brake calipers



A flawed concept. But beautifully executed.


Nostalgia has a funny effect on how we choose to remember things. And, as I have said before, there are some things in this world that are so beautiful to behold that we forgive the fact that they didn't actually do their job all that well. In my nostalgic, cyclocentric world, Campagnolo delta brakes have been a shining example of this.


The following are what I understand to be the 5 standard incarnations of the Campagnolo C Record delta brake calipers. Missing from the lineup are the 2nd generation calipers with the Campagnolo logo etched into the faceplate (see my previous post).


1st generation


2nd generation (printed logo on faceplate has faded)

3rd generation

4th generation

5th generation


The first generation delta calipers appeared in 1984/5 but were soon pulled off the market after reported failures (in the interim, they were replaced by the Cobalto brakeset). Delta calipers then reappeared in 1986/7 and lasted until the end of the C Record era in 1994. For more information in my first post (2008).


An iconic piece of cycling history.




6 comments:

LENHAM said...

Dear mr Wingnut,

I wanted some Campy Delta's for a long time and i surfed the web about them a lot. Often i visited your blog. Since a few days i have my Delta's! They are not NOS so i wanted to clean them very thoroughly. Do you know if there is some kind of instruction manual online for taking apart a set of campagnolo delta's? Or do you possess that knowledge?

Hope u will email me!

wingnut said...

Hi Lenham,
Personally I would remove the faceplate, spray some degreaser then use an airgun (from a mechanic shop) to flush out the grime. I haven't seen any manual or recommendation for dismantling delta calipers and I have never done it. I will post an exploded diagram of the delta caliper which I have from the Campagnolo 1994 spare parts catalogue later this week if you are mechanically-inclined - and brave...

Ca!mpy Lover said...

Very late in response, but they are pretty easy to take apart and re-assemble (at least my 2nd gen ones were!) This is how I remember doing it:
1) Remove faceplate and top adjuster
2) Undo special nuts at back of arm pivot bolts
3) Remove arm pivot bots
4) Remove arms and linkages in one
5) Dismantle as much of this assembly as you wish - it's not that hard to put back together, but just make a note of the order in which the plates and the tiny washers go!

Removal is a revers of the above, except you remove the spring retention pins from the back-plate prior to refitting the arms. This enables the whole thing to be reassembled without fighting the spring tension - then once assembled, push the spring with a screwdriver/pliers or something similar and push the spring retension pins back in - they will be held by the springs once in place.

Hope this helps someone!

Jim

Ian said...

Hi
My father passed his two bikes to me about 10 years ago, one a Bob Jackson frame and the other Tommasini Frame, both hand build by himself, in the late 80s early 90s.

Having been approached at a set of lights whilst riding the Tommasini bike and more recently when I got the bike serviced, the brakes I believe to be a sort after item and the frame to be of high quality.

Link to the Tommasini bike photos
https://picasaweb.google.com/112884395948070434235/TommasiniSuperPrestige?authuser=0&feat=directlink


I have also posted a similar question on bike radar asking for advice and also some advice on brake levers and brakes I was left with, these having never been used still in their original packaging.
http://www.bikeradar.com/forums/viewtopic.php?f=40044&t=12875206

I would be grateful on any comments you could offer, though I am struggling researching the bike myself.

I know you don't give valuations, though at some point I would like to move the Tommasini bike and brakes onto a collector and more full time cyclist than myself and ask what media you would recommend selling bike equipment for example eBay?

Kind Regards
Ian
Glossop, UK

wingnut said...

Hi Ian,

Tommasini & Bob Jackson have enough brand recognition to have a following but nothing like the big hitters Colnago, Cinelli, De Rosa etc. Your, particular Tommasini is fitted with a Campagnolo C Record groupset (cranks, front & rear derailleur, brake levers, delta brake calipers) with Simplex retrofriction shifters - a common combination that indicates the bike was set up by someone with experience. The seatpost is a Chorus model, again suggesting knowledge and expected use of the bike (the C Record post was lovely but had a reputation of fracturing). I can't see the wheels clearly but the hubs are NOT C Record. If the wheels are original to the bike then it has hardly been used as the anodising (grey colour on the rim) has not been scrubbed by the brake pads.

Prices of steel bicycles have gone up over the past few years for a number of reasons not least the increased popularity of the sport and the nostalgia of middle-aged men. Smaller frames tend to sell for higher prices than larger frames (yours would be regarded as a larger frame) but ultimately a bike simply sells for a value that someone else is prepared to pay. It would be reasonable to expect $1600-1800 USD on an auction site like ebay.

Key words in your title/ description should include: Tommasini Super Prestige, Columbus SLX, Campagnolo C Record, and Delta brakes. Measure the seat tube (along the line of the semi-vertical tube that goes to the seatpost) from centre of the crank axle to the centre of the top tube and the top tube (the horizontal tube) from the centre of the seat tube to the centre of the head tube and indicate those measurements in your description. Take photos of the bike under natural light (ie out in the open). Cleaning the bike also helps!

Cheers & good luck.

wingnut said...

ADDIT - that price estimate was probably towards the top end of market tolerance.