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Looking for some advice. Putting together an old CB tandem. I scored a pair of LH Sakae tandem cranks. I'm trying to pair them with a Veloce triple RH crank for the rear. Looking at Shimano BB's but I'm not sure what length to try. I realise that the Campag Crank won't fit as far on the BB spindle so will probably be a bit trial & error, but what length do you reckon as a starting point ?

What bcd is the 48t 9/10 speed chainring ?

Thanks for the compliments & tips.

From what you say I believe my bottom bracket to be a first generation, because it uses bolts to secure the cranks.

IS the Crecord the same as the Corsa C record ? There seem to be so many different Campagnolo chainsets it gets a bit overwhelming.

Is it easy to get replacement chainrings for these chainsets ? The reason being that most of the used ones available seem to have a 52+ tooth outer ring, & something like a 48 tooth would be better for me. That would give me a useable gear range on just the outer chainring.

Here's a pic of the bike. The frame was made by Dave Manders who was a member of the cycling club I raced for. He owned a light engineering company & started making frames. I'm not sure how many he made. A friend of mine had another one, but stacked it irrepairably. I recently found that Dave is still living quite close by & hope to bump into him some time.

Here is a detail pic of how I had the rear stays done, which was a style you sometimes got on handmade frames at the time. I always liked the look of bikes with the stays done like this becasue they formed a triangle, which I thought of as being a bit stiffer than the rhombus formed by tacking them either side of the seat tube. Probably makes no difference in reality.

Thanks again for the info.

Could you explain the difference between a compact & standard chainset ? Does it make a difference for my scenario ?

One of the reasons I am happy to keep this frame is that it cost me £125, which was a fortune to me back when I had it made for me by a friend in 1980. I never really rode it much because it was shortly after buying it that I stopped cycling. I chose every type of lug individually for it's position, & it is completely to my spec in every way. Since buying it I've only used it for the London to Brighton once, & London to Paris once, so I'm keen to start getting my moneys worth from it.

Thanks for the response again.

It's interesting to know what will fir where withe the modern components.

Fortunately I have headsets & brakes & wheels for both bikes.

With regards to point 4 of your post re gears. I have no problem with friction levers. Are you saying that it's possible to use an indexed rear mech with friction levers ??

Point 5. I did have some problems with compatibility with the SR BB that my Holdsworth had fitted & the Superb (I'm guessing Suntour) chainset,& wound up having to fit a different bearing. But the rings on this chainset are worn out ... well really they're past worn out ...

For me buying a new bike really isn't an option as I don't have the money, & I'm quite happy with both bikes at the moment apart from this chainset issue. I suspect also at my age I'm unlikely to regain the racing form I had back in the day regardless of if I have the latest Carbon Fibre bike or my old 531 Mandez.

I'm really grateful for your advice, but you seem to have suggested options for changing everything but the chainset ... I'm looking at stuff like the SRAM. I can see the Tifosi BB on ebay, which looks really good. WHat chainset are you using with yours ?

Also I'm wondering about the possibility of just replacing the chainrings on the Superb chainset, but again, what is compatible ?

Sorry for all these questions but as you can appreciate I don't want to spend a bunch of ££ on some parts that don't work with my frame.

Thanks again Rob

Thanks for your repsonses.

I'm not massively fussed about keeping period parts on the bike. At the same time I have absolutley no knowledge of these newer brands. Everyone says Shimano are the market leaders nowadays, but back in the day I wouldn't have used their parts.

Basically the scenario is I have a frame that I had built for me in 1980, that I have started doing the ocassional time trial on. I also have a Holdsworth that I use for most of mileage. The Holdsworth was just a frame until January & I bought some second hand bits to get it up and running. Like the chainset & a shimano rear mech. The chainset has really worn out rings, & the SHimano changer is sloppy as hell. My thoughts were to put the SR chainset off my other bike on the Holdsworth & put something new/used on the tailor made bike. Also to get rid of the SHimano changer.

The thing is I'm not sure what is compatible with my racing frame. I know it won't take anything more than a 6 speed block (the same as the Holdsworth).

I get confused with all this talk of 10 speed chainsets etc Back in my day they were just single or double ring ......

So what are good makes of chainset now that will fit the bike. & is there a currently available rear mech that will work on my Holdsworth. I don't know if you can used indexed changers with 6 speed blocks ?

I've been out of the game for 30 years & am trying to fix up my bikes that have been stored in the garage for that time. I'm trying to find what Cranks are compatible with a Super record bottom bracket bearing from about 1980.

I bought the bearing new & it is hardly used, but I have an SR crankset on it which I now want to fit to my other bike with its original bearing. I am now wanting to buy a used Campagnolo chainset for it. Obviously nouvo record & Super record & possibly Gran sport will fit. But I are any of the more recent Campagnolo chainsets compatible ?? I have been looking at the chorus & record (rounded castings) chainsets which appear to be much cheaper than the Super/Nouvo record etc. Any advice would be appreciated.

regards

Rob

I've been out of the game for 30 years & am trying to fix up my bikes that have been stored in the gargae for years. I'm trying to find what Cranks are compatible with a Super record bottom bracket bearing from about 1980.

I bought the bearing new & it is hardly used, but I have an SR crankset on it. I am now wanting to get a used Campagnolo chainset for it. Obviously nouvo record & SUper record & possibly Gran sport will fit. But I are any of the more recent chainsets compatible ?? Any advice would be appreciated.

regards

Rob