WTD Older style brake caliper pair

So this turned up...

https://www.lfgss.com/conversations/265060/

And I stupidly ordered these...

http://m.ebay.co.uk/itm/390878473543?nav=SEARCH

But think I need the older style calipers with a thinner bolt than modern ones

Anyone have any please. Standard drop I beleive

Cheers

Do you mean the bolt that goes through the fork crown or brake bridge? I didn't know these had ever been anything other than M6. I have some new similar looking Axis brakes which fit on a 70's Gios for £20

Lovely frame!

Maybe it's a case of nutted vs recessed calipers?

Sheldon, as always, to the rescue: http://sheldonbrown.com/calipers.html

If you can't get the recessed nuts through the back of the brake bridge/fork crown then, as far as I know, you won't be able to find anything thinner that might fit. What you'll need are a pair of nutted brake calipers instead, where a nut tightens AGAINST the brake bridge/fork crown, rather than inside them.

You won't just be able to sub out the recessed nuts for ordinary nuts on these calipers as the centrebolt lengths would be different. You'd be able to fit the front one to the back that way, but would need a new caliper for the front.

If this is the case then your best bet would be to buy a pair on here or retrobike or ebay. Weinmann produced plenty but of mixed quality, in my experience. Dia Compe and Universal also made loads of models, and of a generally better standard than Weinmann (but there are still some bad ones so try to look up model no. if you can).

Your best bet would be Suntour, Shimano, or Campagnolo calipers. They only come in sidepull but with some decent brake pads (Kool Stop Salmons, SwissStop blues, etc) they'll stop you no problems!

Another option, if you can't find any decent nutted ones, is to buy a pair of sidepull recessed ones, use the front one on the back, and swap the centrebolt of the back one for the long one of these http://www.ebay.co.uk/itm/Centre-Caliper-Bolts-Dia-Compe-880-890-1020-MX900-MX901-MX1000-Old-School-BMX-/111648095312?pt=LH_DefaultDomain_3&hash=item19febebc50

It's a bit of a work-around! But just for reference I'm running Suntour Superbes retrofitted with the new centrebolts and with SwissStop blues and they're stopping me on my loaded tourer no problems

Anyway hope that's of some help

You can use the calipers that you have bought by following Sheldon's instructions (EPR posted link above). Simply mount the front caliper on the back & the rear on the front. Sheldon outlines the two methods of mounting the rear caliper onto the forks.

I used this one, and it works very well ...

Just can drill/dremel/file out the hole at the back of the fork crown to fit a long cylindrical recessed nut, which should then reach the short centrebolt of the rear caliper.

Obviously, remember to swap round the brake pads, so that they are facing the correct direction.

http://www.spacycles.co.uk/products.php?plid=m2b0s100p2341
+
Any brake you want.

Or buy some Shimano 600 / Arabesque / golden arrow from the period along with non aero levers. Not a lot if cash and will look the part :)

Shaun

Have you checked the drop you need? It's built to take mudguards and so it can't be close clearance.

I had the same issue on a Paris frame and took a drill to it. 10mm hole through the back of the fork crown and straight through the rear brake bridge.

Wow thanks for each of your replies and advice. Much appreciated.

Both Hilary Stone and Singlespeed Components think they have stock that will fit and advise I need a hex nut fitting calliper. Like you've all said I just need to measure the drop correctly. All the hex nut callipers I've seen so far (mostly ebay) are strangely long drop but I think my frame is standard drop but I'll do an accurate measurement based on Sheldon or Hilary's measuring guide.

My spares box is filling up nicely with stuff I am buying twice!!