StodaD

Hi guys, im new to this forum and delighted to be part of it.

I have a question regarding my bottom bracket. I have a BB on my bike that is compatible for shimano dura ace gxp crankset. I got myself a quarq d zero gxp powermeter and sram chainrings and i assembled the rings together onto the quarq arms. That was fine.

However when trying to remove the cup of the bottom bracket of the shimano BB on the right hand side of the bike with the removal tool, the left cup rotates as well and cannot get that to stop rotating while i try to remove from the right hand side. I am turning it in a clockwise position (RHS cup) . The cup on the left hand side rotates as well and i dont have any other tool to stop this rotating while i try remove the bottom bracket off the bike. I want to install a sram BB which i have bought as there is a gap with the shimano BB on the bike if you install the quarq powermeter on it, whereas the sram BB is the correct fit size.

Any solutions for me to try out?

Thanks again.

StodaD