Dura-Ace 7410 bottom bracket

Posted on Fri 14th, November 2008

• #1

vanatron

Ok, Im in somwhat of conundrum about the chainline for this BB.

According to Sheldon it's 43.5 but checking manually several times it's 47.5.

Dura-Ace 7410 Double 103 Square 43.5 130 8-speed 1996

I'm measuring from the centre of the frame to the outer ring. Am I doing something wrong? As sheldon is gospel, Im thinking Im in the wrong here.

Cheers!
• #2

provenrad

For double cranks Sheldon measures to the mid-point, not the outer chainring... (mentioned in the article)
• #3

vanatron

amateur hour! Cheers Prav

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