Fitted new Shimano Zee crankset. My BB is 68mm so it advises 1 2.5mm spacer drive side and 0 drive side this is the images is the non drive side meant to
Amazon.com : SHIMANO FC-M580 Hollowtech II Crank Arm Spacer (6.5-mm) : Bike Cranksets And Accessories : Sports & Outdoors
Shimano Zee Cranks. I don't know if I'm missing something but I tightened the pinch bolts and all tight and just stopped and the crank arm has been coming off the spindle.
Shimano Zee Fc-M645 83mm Crankset | Jenson USA
Amazon.com : SHIMANO FC-M640 Zee 10 Speed Crankset (170-mm, 36T with 68/73-mm Bottom Bracket) : Bike Cranksets And Accessories : Sports & Outdoors