Bottom bracket - ISO or JIS

[pubrunner]

I have a Stronglight 80 chainset (Double, NOT triple) for which I require a bottom bracket.

A well known bike shop has recommended that I fit either a 118mm ISO or a 115 JIS bb.

Which should I go for and why ?

Thank you for any comments/advice.

 

[MajorMantra]

All you need to know.

Matthew

 

[twentysix by twentyfive]

All you need to know.

Matthew

Good old Sheldon Brown B)