Which type of Bottom Bracket is this?

tonysj

Hi All,

I've changed the chain on my turbo/winter bike yesterday and noticed there's some "play" in the crank laterally but the bearings seem smooth. I'm not sure which type it is.

Its a BTwin Triban 520, 2016 Sora groupset and I think its a HT2 Threaded but not 100% sure.
The info on the cups is; BC1.37 X 24, its got 16 slines and 44mm diameter. I haven't got the correct socket to remove the cups yet but have removed the crank to see inside.
The cups are silver and the bearings are on the outside inner edge of each cup, I can see the silver cups inside the crank/BB then there's a black sleeve between the 2 cups..
I've taken couple of pictures if needed.
On a strange note it says on the cups Do Not Disassemble!!

Q, what type is the BB?

What tool will I need?

Is it a full BB to replace them or just the bearings?

Im still learning about this stuff lol.

Regards.

T.

Ben6899

Sounds like HTII, Tony. You might be able to take up the play by loosening the pinch bolts on the NDS crank arm and applying a little more preload using the plastic nut in the end of the spindle at the NDS.

You only need an Allen key and one of these:

https://www.merlincycles.com/icetoolz-hollowtech-2-tools-44746.html?utm_source=PHG&utm_medium=AffiliateMarketing&utm_campaign=phg-GB&source=PHG

Ben6899

https://www.youtube.com/watch?v=4BP3-XGWWqc

1:10 in this video

tonysj

Ben6899 said:

Sounds like HTII, Tony. You might be able to take up the play by loosening the pinch bolts on the NDS crank arm and applying a little more preload using the plastic nut in the end of the spindle at the NDS.

You only need an Allen key and one of these:

https://www.merlincycles.com/icetoolz-hollowtech-2-tools-44746.html?utm_source=PHG&utm_medium=AffiliateMarketing&utm_campaign=phg-GB&source=PHG

Thanks Ben, I managed to use a large Torx socket to apply more preload and it seems to have cured it.
Thanks for the heads up mate

Ben6899

Brilliant news!