Longer BB Axle with Alivio MC10 Cranks on 1994 Scott Sandoa

[caffetito]

I recently came across a 1994 Scott Sandoa with Alivio MC10 cranks, and I need to replace the bottom bracket. Is it possible to use a longer axle than the original 110.5 mm? Sheldon Brown states that the size for these cranks can range from 110.5 to 113 mm. What happens if I use a longer axle?

 

[Splatter Paint]

It just pushes the chain line out a bit, usually no biggy, just adjust the front mech accordingly. BUT don’t go more than 113mm or the chainline will be really crap.

 

[caffetito]

cool, thanks a lot!

 

[RetroDavy]

As above.

Working out the existing chainline will help.

Sheldon says 47.5 - 50mm for MTB triple. If it's less than that, longer axle.

https://www.sheldonbrown.com/chainline.html