Park Tool - GPS-30 Bottom Bracket Guide Pin S3-Size-CR1620 Armrest kit includes PFD armrest

Armrest kit includes PFD armrest compatibility washer - M5 (the washer allows installation with aerobars using M5 bolts)

Sizes (Metric): 210x55

Suitable for BMX and MTB

MAIN BOLT:       8mm Alloy Main crank bolt for Install/Self-Extract

Park Tool - GPS-30 Bottom Bracket Guide Pin S3-Size-CR1620 Armrest kit includes PFD armrestPARK TOOL 30MM GUIDE PIN FOR BOTTOM BRACKET TOOL The 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