Bicycle Bottom Bracket Remover 20 Teeth Square Hole Spline Repair Wrench Mountain Road Bike Spanner Wheel Puller Removal Tools Name: Bicycle bottom bracket tool Material: High carbon steel Specification: 20 teeth Application: square axis / spline axis Net weight: sleeve tool about 128g Net weight: anti-off tool about 63g Feature: * Upgrade, high carbon steel , higher hardness, wear resistance, long service life * Professional anti-off design makes the bottom shaft not easy to fall off, making installation more firm and convenient * High compatibility, 20 tooth, downward compatible with 16 tooth slots, and the longest compatible with 129mm bottom bracket * Improved the shape of teeth and slots, protecting the bottom bracket, not easy to break * Used in square axis and spline axis Package: 1 pc bicycle bottom bracket tool