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Box One Two Oversized, External, Square-Taper Titanium/Chromoly BMX Bottom Bracket

Free shipping on orders over $29.99

$64.98

$ 27 .99 $27.99

In Stock
  • ✔️ PRECISION ENGINEERING: Box Two 24mm External BMX Bottom Bracket feature cold-forged, CNC-machined alloy cups, dual-labyrinth bearing covers, and precision sealed bearings.
  • ✔️ OPTIMAL PERFORMANCE: Box Two 24mm External Bike Bottom Brackets are the perfect match to Box Three, Four cranks, and the ultimate upgrade to the budget BBs sold with most cranksets.
  • ✔️ LIGHTWEIGHT DESIGN: Box Two 24mm External Bottom Brackets are designed to fit all 24-millimeter crank spindles and frames with 68 or 73 x BC 1.37-inch bottom bracket shells.
  • ✔️ PREMIUM FEATURES: Our Box Two 24mm External Bicyle Bottom Bracket feature a Stable Outboard Bearing Position and Precision Abec-5 Sealed Bearings, housed in cold-forged, CNC-machined alloy cups with an anodized finish and an ABS plastic sleeve.
  • ✔️ COMPATIBILITY: Box Two 24mm External Bike Bottom Bracket fit all 24mm crank spindles and 68/73mm frames, seamlessly matching Box Three and Box Four cranks for ultimate performance.


Box Two 24mm External bottom brackets feature cold-forged and CNC-machined alloy cups, dual-labyrinth bearing covers and precision sealed bearings. They are the perfect match to Box Three and Four cranks, and the ultimate upgrade to the budget BBs sold with most cranksets. Box Two 24mm External Bottom Brackets are designed to fit all 24-millimeter crank spindles and frames with 68 or 73 x BC 1. 37-inch bottom bracket shells.


J. Cosgrove
Reviewed in the United States on September 23, 2023
Great update part
leo
Reviewed in the United States on May 27, 2018
in perfect state
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