Park Tool - GPS-1 Bottom Bracket Guide Pin Set S3-Size-40T highly effective construction with a

highly effective construction with a great deal of flexibility

All in the shape

Aluminum leg straps ensure all parts slide

Suntour® and  other cassette sprockets

Park Tool - GPS-1 Bottom Bracket Guide Pin Set S3-Size-40T highly effective construction with aPARK TOOL FIVE PIECE BOTTOM BRACKET GUIDE PIN SET This complete set of five guide pins adds stability and security to the bottom bracket removal and installation process. Each pin included in the GPS 1 is sized for one of the most common thru axle hub or bottom bracket spindle standards. 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