Replacing cup & cone BB with sealed. But which?

[sefton1275gt]

Shimano deore triple

 

[squirrelchaser]

Thanks. I’ll get the shimano un55. But which length? 115 or 127?

Measure the axle you're replacing , the length should be the same .

 

[sefton1275gt]

Cheers

 

[hamster]

The Deore MT60 in the picture takes 122.5mm.

 

[FluffyChicken]

The Deore MT60 in the picture takes 122.5mm.

As above, though on a road frame it may (probably not) have a 118 fitted.

Take the current one of and get teh code on it.
If it D-NL then it is 122.5 modern you need.

 

[hamster]

Good point about a road frame and 118.

 

[sefton1275gt]

It’s a 122 (a little difficult to measure as I don’t have to lock ring removing tool yet). But it’s defo longer than 118mm

However sjs only had the n55 in 115 or 127

 

[sefton1275gt]

got it out. It’s 122. D 3nl

 

[FluffyChicken]

got it out. It’s 122. D 3nl

Yep, the 3 means the 68mm shell.

Looking at the crank and other stuff, that BB should be in great condition.
Why change.

 

[sefton1275gt]

Or do I just service what I have (just need a new lock ring as that was damaged when removing it)