I installed my used Ultegra Hollowtech II crankset on my indoor trainer bike just before Christmas. The bikie has not left the house. I've actually sat on it and clipped into the pedals only once or twice on the trainer. I just went to remove the crankset (have a new tool to play with to properly torque the adapter cups) and the left crankarm won't budge. It's like it's glued on! Any ideas? I've totally loosened the bolts on both sides of the crank arm too. Please help if you can.