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How to Shimano Octilink and I.S.I.S. cranks and BBs - YouTube
Amazon.com : D Dymoece Bicycle Bike Bottom Bracket Removal Tool for Shimano Octalink ISIS Splined FSA LP VP : Sports & Outdoors
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Super B TB 6618 2 In 1 Crank Puller Tool for Shimano Octalink ISIS Drive System TB 6616 TB 6617 Square Taper Crank Remover|Bicycle Repair Tools| - AliExpress
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Amazon.com : D Dymoece Bicycle Bike Bottom Bracket Removal Tool for Shimano Octalink ISIS Splined FSA LP VP : Sports & Outdoors
Crank Removal and Installation: Three-Piece | Park Tool