Upgrading from a Sugino Impel to a Topline - BB length??

digitalkreation

Retro Guru
My stock XXTeam bike used a Sugino Impel crankset bolted to a 110mm bottom bracket. I now want to run a Topline crank instead. Think I need to change out the bb for a longer one? Any help appreciated.

Oh, and I'm nowhere near assembling the bike, I'm still acquiring parts for it, thus the question. :)
 
Trying to fit a set of Toplines to one of my builds and general concensus is that a 125-127mm bb axle is required...
 
Was goint to say, put it on the BB you have measure it and adjust to correct length. Of course don't tighten it so the ring dig into the frame ;)
 
i used 122. ok with no load, but when i put the power down they were clipping the chainstays. put me right off.
 
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