Any idea what these are ?

[Bryncrug72]

Look like a dust cap ?

 

[lewisfoto]

What size are they? Bar end caps?

 

[kase1983]

Handlebar plugs.

 

[Bryncrug72]

I did wonder if they could be, will get the callipers on them in the morning
Cheers

 

[drystonepaul]

Bar plugs from the titanium XLR 540 bars.

 

[Bryncrug72]

Bar plugs from the titanium XLR 540 bars.

Will they fit standard bars ?

 

[drystonepaul]

They might do if the ends are fairly thin walled. Calipers will give you a definitive answer.