I show how to replace an older square taper bottom bracket with a modern SRAM Truvativ GXP (Giga X Pipe) bottom bracket. I also show how to remove and install the cranksets. This a cool upgrade/update to a vintage bike. This was part of my DIY cyclocross/gravel bike project. Build Cheap DIY Cyclocross Bike From Hybrid: http://www.youtube.com/watchv=gFJcWdur3iM ▶ SUBSCRIBE & HIT THE 🔔 http://bit.ly/SubRJTheBikeGuy 👍 And please give my video a thumbs up 👍 ▶FACEBOOK.com/RJTheBikeGuy https://www.facebook.com/RJTheBikeGuy ▶TOOLS http://www.rjthebikeguy.com/tools ▶SHIRTS http://bit.ly/RJBikeGuyShirts ▶WEBPAGE http://www.RJTheBikeGuy.com