Join Date: Nov 2004
Bikes: Wabi Lightning, fixed 13.6 pounds. Cera steel road bike Campy veloce 9s
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original BB for Stronglight 49D crankset?
Hi all, first time posting in this knowledgeable section of bikeforums, usually lurking in mechanics and ssfg.
Here's the deal: I am going to build my own steel track frame. My surname is Tierie, which used to be Thiery when my ancestors still lived in France. The frame will bear this name, therefore I want all parts to be French and more or less vintage.
So far I have built a wheelset with NOS Normandy track hubs and used Mavic open4cd clinchers (slightly less 'period correct'):
And recently I got a good deal on this:
a 165 mm Stronglight 49D crankset with... french pedal threads yay!
I want to use a BB that is as close to original as possible, so cup and cone and preferrably Stronglight.
Does anyone know what the taper is on this? I would be surprised if it was JIS. I think all European manufacturers of that period used the ISO standard, no?
Also, what spindle length will give me a 42 mm-ish chainline? I know these cranksets can be used as a single and double because of the double BCD, but does anyone run this crankset as a single speed setup?
If so, what BB length is needed?
I have windowshopped ebay for far too long looking for a sort of period correct British threaded Stronglight headset (I don't want to use the still available, excellent A9). I am even considering using a French threaded BB shell and steerer tube for my framebuild because, funnily enough, it will give me more options (plenty of french threaded Stronglight BB's and headsets around) to keep my build as French as possible. I really should be starting that frame build instead of spending money on the internet, but the build itself is a long-term project and will give me plenty of time to collect the right parts.
Thank you in advance for any input!