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The Shimano Crank Arm Tool Hollowtech II is a workshop essential for anyone who regularly services modern Shimano cranksets. Designed specifically for Hollowtech II systems, this compact tool allows you to safely install and remove the plastic preload cap on the left crank arm without damaging delicate threads or components. Its precise fit ensures secure engagement with the crank cap, helping you achieve the correct bearing preload and smooth crank rotation, whether you are building a new bike or overhauling a well-ridden drivetrain.
Ideal for home mechanics and professional workshops alike, the Shimano Crank Arm Tool Hollowtech II is simple to use and easy to store in any toolbox. It pairs perfectly with standard hex keys or other common tools typically used during crank and bottom bracket service. By using the correct dedicated tool, you reduce the risk of slipping, rounding, or cracking the preload cap, saving time and avoiding costly replacement parts. Durable, reliable, and purpose-built, this tool is a smart addition to any mechanic’s kit who works with Shimano Hollowtech II cranksets.
