Park Tool GPS-30 30 mm Guide Pin for Bottom Bracket Tools Tools & Accessories With its Apex™ baffle internal

With its Apex™ baffle internal structure

thin tube is able to fit all the way through many Presta stems with removable valve cores

Brakes are retracted in climbing mode with your first step into the binding and are activated automatically in downhill mode

partial-drop hood with a riveted cord-lock adjustment system

Ist slim silhouette hugs the body and thus fits perfectly at every turn

Park Tool GPS-30 30 mm Guide Pin for Bottom Bracket Tools Tools & Accessories With its Apex™ baffle internalThe GPS 30 adds stability and security to the bottom bracket removal and installation process. The guide pin simply threads into any of the thirteen Park Tool bottom bracket tools which feature integrated threads (see Product Compatibility for full list). A 5 mm hex fitting is integrated into the threaded end for secure and easy installation and removal. Once installed, the extra long 30 mm pin engages into the bottom bracket, bolstering the fitment