Bottom bracket spindle length question

ricktabor1
ricktabor1 Posts: 272
edited May 2011 in MTB workshop & tech
Hi,

I've taken a Truvative Isoflow triple chainset off one bike - the bottom bracket was 68mm with 113mm spindle length (square taper).

The bike that i'm putting it on has a 73mm bottom bracket shell. When I buy the new BB, do I still need 113mm spindle length, or will this mean that the chainline is 2.5mm out (does 2.5mm even matter)?

Any advice bike people?
Got to get up to get down

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