Box Two 24mm Bottom Bracket

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Color Black

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Box Two™ 24mm External bottom brackets feature cold-forged, CNC-machined alloy cups, dual-labyrinth bearing covers, and precision sealed bearings. They are the perfect match to Box Three™, 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.

Stable Outboard Bearing Position
Precision Abec-5 Sealed Bearings

Process: CNC-Machined Cups
• Cups: Alloy
• Sleeve - ABS Plastic
Finish: Anodized
Spindle Type: 24mm
Shell Width: 68/73mm
Thread: 1.37 Inch x 24 TPI (English)
• Shell: BSA (Euro) Threaded
• Spindle: Box Three™, Box Four™, Shimano HollowTech II, RaceFace X-Type
Weight (+/- 5%): 105 g / 3.7 oz

Compatibility: Box Three™, Box Four™, Shimano® HollowTech II, RaceFace® X-Type
Material: 6061-T6 Aluminum
Shell Width: 68mm/73mm
Spindle Type: 24mm
Thread: 1.37 Inch x 24 TPI
Weight: 105 grams / 3.7 ounces