Box Two Square Taper Cromo Bottom Bracket Product Overview The Box Two Square Taper Cromo Bottom Bracket is a sealed cartridge system built for three-piece cranksets using square taper spindles. Hand-assembled with a chromoly spindle and sealed bearings, it delivers reliable performance at an accessible price point. Designed for young racers and riders seeking durability without premium costs. Key Features Chromoly spindle — Steel alloy provides superior strength-to-weight compared to aluminum, resisting bending under load and lateral impacts Sealed bearings — Cartridge design keeps contaminants out, extending service life and reducing maintenance frequency Forged and CNC-machined alloy cups — Precision manufacturing ensures consistent bearing seat and reduces play or wobble Composite center spacer/seal — Lightweight sealing element protects bearing internals while minimizing weight Hand-assembled construction — Individual assembly allows quality control and proper bearing preload tuning Technical Specifications Spindle material: Chromoly steel Cup material: Forged and CNC-machined alloy Bearing type: Sealed cartridge Spindle type: Square taper Available widths: 113mm or 118mm Spacer/seal: Composite construction Assembly method: Hand-assembled Compatibility and Ideal Use Cases Fits all BMX frames with standard square taper bottom bracket shells (68mm BSA thread). Compatible with any three-piece crankset using square taper spindles. Best suited for entry-level to intermediate racers, young riders, and those building budget-conscious complete bikes. Recommended for street, park, and racing where sealed protection and cartridge simplicity are valued over lightweight materials. **Due to unique nature of this item, ALL sales of this product are FINAL. No Refunds or Returns**
