Park Tool Bottom Bracket Tapping & Facing Set (BTS-1) collection_cruiser making it an essential part

making it an essential part of your footwear that helps create a better connection to the pedals

Dropper Compatible: Designed to not only stabilize your seatpack

A new standard in external bearing performance

8 mm (PRAC0061) and 34

Park Tool Bottom Bracket Tapping & Facing Set (BTS-1) collection_cruiser making it an essential partAbout Park Tool Bottom Bracket Tapping & Facing Set (BTS 1) The BTS 1 is a precision tool system for ensuring threaded bottom bracket shells are properly aligned and faced. The precision manufactured two piece tap handle engages through the bottom bracket shell, ensuring both sides are aligned with the shell and each other. The included English threaded taps precisely verify and repair the alignment of threads in the shell. After tapping, the taps act