Birzman Bottom Bracket Socket Hollowtech II

Hollowtech II Compatibility – Specifically designed for Shimano Hollowtech II bottom brackets, ensuring a perfect fit for installation and removal. Durable Construction – Crafted from high-quality materials for long-lasting performance, even under heavy use. Precise Fit – Provides a secure grip and minimizes the risk of damage to the bottom bracket, ensuring smooth operation. Essential Bike Maintenance Tool – A must-have for bike technicians and DIY enthusiasts who perform bottom bracket installation and removal. Ideal for Shimano Bikes – Perfect for use with Shimano’s Hollowtech II crankset and bottom bracket system, ensuring efficient maintenance.