Fitting a bottom bracket

[pubrunner]

Hi All,

I've a frame sitting in my garage that I'm starting to buildup into a bike.

I've acquired a brand new bottom bracket with nylon cups.

I've never fitted a bottom bracket before - other than ensuring all the threads are clean on the frame, presumably I don't need to need to do anything else before fitting ? - Do I need/should I put anything on the nylon threads ?

To clarify, The cups don't carry ball bearings on plastic. They're merely threaded holder rings for a metal shell which contains sealed bearings. The greasing I refer to, is between the plastic thread of this holder ring and the bottom bracket shell which is part of the frame.

Ta. for any advice about fitting.

 

[BSRU]

Grease the threads.

 

[pubrunner]

Grease the threads.

For plastic/nylon, should any specific grease be used ?

 

[4F]

http://bicycletutor.com/cartridge-bottom-bracket/

 

[chillyuk]

I just use lithium grease, a big tin from an agricultural merchants for under a fiver.

 

[pubrunner]

Cheers for the replies fellas !

I have, however, an associated query . . . . . . .

The lockring has 'cutouts' which are 'curved', should I/could I use a traditional lockring spanner ? Other lockrings that I've seen, have rectangular 'cutouts' and most lockring spanners that I've seen, have rectangular 'notches' to fit into these 'cutouts'.

But on the bottom bracket that I intend to use, the cutouts on the outer edge of the lockring are curved - almost semicircles. Do I need a special tool to tighten them ? (I think that a 'standard' lockring spanner would slip - not being a good fit).

Can anyone give me a link to an appropriate tool that I could use ?

Thank you very much !

 

[pubrunner]

Cheers for the replies fellas !

I have, however, an associated query . . . . . . .

The lockring has 'cutouts' which are 'curved', should I/could I use a traditional lockring spanner ? Other lockrings that I've seen, have rectangular 'cutouts' and most lockring spanners that I've seen, have rectangular 'notches' to fit into these 'cutouts'.

But on the bottom bracket that I intend to use, the cutouts on the outer edge of the lockring are curved - almost semicircles. Do I need a special tool to tighten them ? (I think that a 'standard' lockring spanner would slip - not being a good fit).

Can anyone give me a link to an appropriate tool that I could use ?

Thank you very much !

AAh - found the answer, I need a FAG SKF T4425.

 

[byegad]

chacun à son goût