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The ALTA Sealed Bearing Mid Bottom Bracket with 8T 19mm spindle axle is built for strength, smooth performance, and long-lasting reliability. Designed with precision-sealed bearings, this bottom bracket offers smoother crank rotation and better protection against dirt and moisture—ideal for BMX, freestyle, and cruiser builds.
This setup fits perfectly with ALTA and ALTALINE frames and is also compatible with most Mid-style BMX, freestyle, and custom cruiser frames that use a 19mm spindle. The heavy-duty black finish and solid construction make it a dependable choice for both performance riders and show builds.
Engineered for riders who demand quality and durability, this bottom bracket is easy to install and built to handle everything from street riding to casual cruising.
Spindle Type: This is a 19mm 8-spline chromoly spindle, the standard type used for 3-piece BMX cranks from brands like ALTA, ALTALINE, Profile Racing, Odyssey, Haro, and Redline.