Sunday, August 14, 2011
After a bit of hurried metalwork, i removed some material from the e type e thirteen guide. it now mounts flush to the Blackspire iscg05 plate and with a bit of messing around with clearances, i had an e thirteen based guide that will work with the chainring in the outer position on the xtr M980 crank. Sweet!. it has plenty of clearance between the crank arms and the guide but may need a tiny sliver of plastic shaved from the bottom of the outer plate/lower radius of the guide *if* i decide to use a 34 tooth ring. With 35 teeth and 36 teeth rings, it clears the outward angled crank arm inner surface well. Phew.
I was nervous about attempting all this, because i really wanted it to work. After looking at it all i knew it would be close.
So it was...