Bottom Bracket query

[Tonee62]

Hi , I'm looking for a bottom bracket, axle and bearings for a 1960s raleigh roadster. Do the parts come in different sizes or are they a standard spec. I've recently spotted some axles online which had part numbers, similar to mine, I've also seen some sites selling axles with no code whatever, what do the codes mean?
Are axles specific to particular bike frames. The axle code from my roadster is 08GC.
Any advice would be much appreciated.

 

[Tonee62]

I'm looking for authentic parts.

 

[biggs682]

what thread is it 24 or 26 tpi ?

and what length is it ?

 

[Tonee62]

what thread is it 24 or 26 tpi ?

and what length is it ?

I don't know whether its 24 or 26 tpi, how do I measure it?
The axle length is 138mm or 5 1/2 ''

 

[Tonee62]

I don't know whether its 24 or 26 tpi, how do I measure it?
The axle length is 138mm or 5 1/2 ''

Actually more like 140mm

 

[biggs682]

I don't know whether its 24 or 26 tpi, how do I measure it?
The axle length is 138mm or 5 1/2 ''

not sure how you measure its normally stamped on the outside of the cups

 

[Tony Raynor]

Didn't raleigh use 26tpi stuff. Sure I've read it on Sheldon pages. Will try to confirm with link

http://sheldonbrown.com/raleigh26.html

 

[Tonee62]

Didn't raleigh use 26tpi stuff. Sure I've read it on Sheldon pages. Will try to confirm with link

http://sheldonbrown.com/raleigh26.html

Thanks for the link, its looking as though i need a 26 tpi bottom bracket. Anybody know where I can get hold of one, including axle.

 

[biggs682]

Thanks for the link, its looking as though i need a 26 tpi bottom bracket. Anybody know where I can get hold of one, including axle.

@Tonee62 i have a complete set but shaft is a max of 135 long but will go to my lbs and check if cups are 26tpi as i think they are , will advise 2moro

 

[Tonee62]

@Tonee62 i have a complete set but shaft is a max of 135 long but will go to my lbs and check if cups are 26tpi as i think they are , will advise 2moro

Ok thanks biggs682, let me know how you get on.

 

[biggs682]

@Tonee62 didnt get to bike shop but tried cups in a new frame that takes 24 tpi and they dont even start to screw in so these should 26 tpi

 

[Venod]

Here's an alternative if you can't get what you want.

http://store.velo-orange.com/index....ets/grand-cru-threadless-bottom-brackets.html

 

[Tonee62]

@Tonee62 didnt get to bike shop but tried cups in a new frame that takes 24 tpi and they dont even start to screw in so these should 26 tpi

Thanks for checking the cup sizes biggs. Your last message got me thinking, I decided to take my old bb axle and cup from non drive side with locking washer to my lbs. I wanted to be sure if I really did need new bits and what tpi they were. Anyway the upshot being, my lbs thinks I may possibly get away with the bits I have, not ideal as I would prefer them to be in better condition, they look a bit worn to me. Lbs also reckons the bb cup is 26 tpi