The Park Tool GPS-1 Five-Piece Bottom Bracket Tool Guide Pin Set is a complete set of guide pins for improving stability and alignment during bottom bracket removal and installation with compatible Park Tool bottom bracket tools. Each of the five pins in the GPS-1 is sized to a different common thru-axle hub or bottom bracket spindle standard, giving mechanics coverage across a wide range of modern drivetrains in a single set. Each pin threads into any of the thirteen Park Tool bottom bracket tools that feature integrated threads, using a 5mm hex fitting at the threaded end for installation and removal without additional tooling. Once seated, the extra-long pin — with a usable length of 61mm (2.4") — engages into the bottom bracket or hub to hold the service tool in alignment and reduce the risk of misalignment during torque application. The GPS-1 is sold as an accessory to the compatible Park Tool BBT-series tools; those tools are sold separately.
Set of five guide pins, each sized to a different common thru-axle hub or bottom bracket spindle standard
Threads into any of the thirteen Park Tool bottom bracket tools with integrated threads
5mm hex fitting at the threaded end for tool-free installation and removal
Usable pin length: 61mm (2.4")
Pin engages the bottom bracket or hub to prevent misalignment during service
Compatible Park Tool BBT-series tools sold separately
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Everything was great. Was waiting for the SL9 to release since the first leak. Going from a SL7 was night and day.
Also Sierra Bicycle Supply, was amazing. Will be shopping here plenty more. The service they displayed was top tier, from the order placing online all the way to the delivery.
After many years I wore out my derailleur gears. Since I ride on my wind trainer daily, I needed to get up and riding again. Riding us part of my cancer therapy. Replacing the gears was a quick and easy way to fix the problem. Cost was fine and the delivery was fast. Thank you.
Got this for my kids bike. He does XC racing. Has been riding in dry lose dirt, wet conditions. Lots of climbing and some downhill. He loves them. Shipped fast and in sexure packaging. I would definitely buy again.
Everything was great. Was waiting for the SL9 to release since the first leak. Going from a SL7 was night and day.
Also Sierra Bicycle Supply, was amazing. Will be shopping here plenty more. The service they displayed was top tier, from the order placing online all the way to the delivery.
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