Bottom bracket threads on 1950s Phillips

[andyz]

..........well that's blown years of theory Always thought precession was an astronomical / groroscopic term.....


Shaun

Shaun,

I don't know what I was thinking! Maybe its the months of endless rain which has rotted my brain, but of course its Newton's 3rd law! Doh! :facepalm:

Anyway, my conclusion is that it must have been done by accident from new. After discussing it with another family member, we're pretty certain the frame came from the dump! Probably in the early 60s.

I'll loctite it and hope for the best.

Andrew

 

[Martin Rattler]

I was a little puzzled by this when I read it the other day as I was sure that all of my bikes have the adjustable cup on the drive side but didn't think much more about it until today when out on my '80s Raleigh Clubman (it's yer bog-standard knockabout classic) and I noticed that the adjustable cup is on the non-drive side. Hmmm, so carrying out a quick audit on my return I found that all of my bikes that have a conventional bottom bracket, the earliest a 1954 RO Harrison and the latest a 1976 Mercian all have the adjustable cup, RH threaded, on the drive side.

Or have I confused myself and that's what you said in the first place? To be honest it makes more sense to me to have the adjustable cup on the non-drive side but if my bikes are anything to go by this appears to have been a later convention.

 

[Midlife]

That's odd as all the bikes I have come across that use cup and cone bottom brackets have the fixed cup on the drive side.

Shaun

 

[andyz]

That's odd as all the bikes I have come across that use cup and cone bottom brackets have the fixed cup on the drive side.

Shaun

Yes, same here, apart from my daft Phillips.