Technical Dura Ace 7900 SRM Question

[baldkingpin]

The four torx (i.e., starnuts) that secure the crank arm to the PM are supposed to be torqued to 8NM (actually, one of the four is smaller and has a 6NM rating). I'm having difficulty getting my torque wrench in there as the socket bumps against the crank spindle, causing the torx bit to not align well. This is especially a problem with the small starnut as it's fragile and shallow.

I've managed to get them right by using an extension but it's sure awkward and I can see there's a high risk of rounding the starnuts if you're not ultra careful. The four pin fastener on my old Cannondale SRM was a way better system. I suspect clearance issues with new frames led to the new design for Dura Ace.

Anyone run into this issue? What tool do you use? Thoughts?

[Cyco]

Under the Blue-Point name Snap-On does long Torx bits

[thisisatest]

i use this tool

with this bit


http://pbtoolsus.thomasnet.com/category/torque-handles