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

Lightweight enough to stuff in your pack for summer backpacking but comfortable enough for backyard campouts with the kids

the Firn enables quick transitions between skinning

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

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