FBM Bottle neck stems

[Gary72]

Managed to bag 2 in recent weeks. Anyone able to give a date for them. I know there are various versions. I would really like the version with the bottles etched on the side. I only have 1 in my possession at the moment as a fellow radster is looking after a bike I bought just for the stem
I'm pretty certain that this one is the 2010 version, Has US sized allen bolts.


This is the other one that I'm not sure on

Cheers
Gary

[Dannywhac]

You beat me to that Bottleneck by about an hour Gary 

Yeah, that top one is the later one, the bottom one might have the bottles on the side (see pics of mine on my Steadfast below) - they're the second gen ones I think.

Wanna swap the later one for some Primo hubs? 

I *think* the gens went:

First gen:

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Second gen:





Third gen:

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And fourth gen:

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[Gary72]

Sorry Dan
Mad thing is I paid more for the later stem then I did for the whole bike with the other stem on.
What hubs you got?
Any idea on year for the earlier stem?

[Gary72]

Just got sent some more pics and the other one I have does have the bottles and skulls on the side