Does anyone know this crankset brand or any information on it?

[rickmarin]

I have typed it in and have not found any similar ones and cant find the logo detail.

[andrew_s]

It's Specialites T.A., commonly just "TA"
The same logo is visible here: http://www.blackbirdsf.org/ta/stamp.html

You can still get replacement chainrings
https://www.spacycles.co.uk/m2b0s148p0/ ... clotourist
(though you may have a different model)

Older versions tend not to work too well with modern front mechs, as there isn't much of a gap between the outer chainring and the crank arm, and modern mechs have wider cages that will hit the crank.

[IanA]

TA, a French brand. We have one on a 30 year old tandem and I also have a more modern version on a solo. From the condition probably TA Cyclotouriste, around in the 70s/80s.

[rickmarin]

Is it chrome or polished steel?

[Mike Sales]

Is it chrome or polished steel?

It is an aluminium alloy.

[Brucey]

there is quite a good write-up on older TA stuff here

http://www.classiclightweights.co.uk/components/ta-chainrings-comp.html

TA made chainrings in a very wide range of formats, both for their cranks and cranks from other manufacturers.

OP's photo (I think) just shows the spider arm at the bottom; if so, it isn't a 'cyclotouriste', but it could be a 3-pin 'randonneur' type chainring set, or one meant for a third party crank.

cheers

[scottg]

TA makes chain rings in large number of formats.
It is handy to be able to buy new chain rings for a 50 year old crank.

For reference

https://www.peterwhitecycles.com/ta-chainrings.php

[simonineaston]

Trade-mark on one of mine...

T.A.'s stamp on an aluminium alloy chainring

[rickmarin]

Any ideas where I can find a cover like this? Thanks to everyone who has replied to my last post.

[PT1029]

It vaguely looks like a cover off a BMX style BB, which is somewhat at odds with your previous enquiry!
What is it off, and what size is it?

[rickmarin]

It vaguely looks like a cover off a BMX style BB, which is somewhat at odds with your previous enquiry!
What is it off, and what size is it?

These were the measurements I got off it. It's a cover for a left crankset of the vintage bike set that other comments have listed.