- Sep 4, 2008
Hi all! I have a 2006 Specialized Allez with a Sugino Comp triple crankset. I am in the process of upgrading my Sugino/Shimano Tiagra drivetrain to an Ultegra setup. The problem I am having is with removing the Sugino crankset. It is a cotterless crank and has a square taper BB-7420 cartridge bottom bracket. I have a generic crank removal tool, and as far as I can tell there are no bolts and washers that need to be removed prior to using the tool. Try as I might, however, I can not get the blasted thing to come off! I am sure I am using the tool correctly because I have used it previously to remove the crankset on my '87 Trek 400. When I put the crank removal tool on and torque it down it gets to a point where it is so tight that I am concerned about stripping the threads. But the crankarms don't move an inch! Am I missing something here? Am I not doing something correctly? I want to be able to take the crankset off and clean up the bottom bracket a bit prior to upgrading to the Ultegra crank... and because I bought the bike used and am not sure how much maintenance the previous owner did to it. I am attaching a pic of the chainring side so hopefully you maintenance savy people can put some of that knowledge into my head! Thanks!