{"product_id":"box-two-external-euro-24mm-bottom-bracket","title":"Box Two External Euro 24mm Bottom Bracket","description":"\u003ch1\u003eBox Two External Euro 24mm Bottom Bracket\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Box Two External Euro bottom bracket is a sealed component engineered for compatibility with Box Three and Four cranks on single-speed and multi-speed BMX and freestyle bikes. Cold-forged and CNC-machined aluminum cups combined with dual-labyrinth bearing covers and precision sealed bearings deliver reliable performance and extended component life.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold-Forged and CNC-Machined Cups\u003c\/strong\u003e — Precision-manufactured aluminum construction resists deformation and wear; ensures consistent bearing support and smooth spindle rotation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6061-T6 Aluminum Construction\u003c\/strong\u003e — Aerospace-grade aluminum provides strength and corrosion resistance; reduces overall bottom bracket weight compared to steel alternatives\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Labyrinth Bearing Covers\u003c\/strong\u003e — Labyrinth sealing system sheds water and mud while preventing dirt infiltration; ideal for riders in wet conditions and casual outdoor use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Sealed Bearings\u003c\/strong\u003e — High-quality sealed bearings reduce friction and extend component life; minimizes maintenance requirements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24mm Crank Spindle Compatibility\u003c\/strong\u003e — Engineered specifically for Box Three and Four cranksets; ensures optimal fit and reliable power transfer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Shell Compatibility\u003c\/strong\u003e — Fits both 68mm and 73mm × 1.37-inch (English) threaded bottom bracket shells; accommodates various frame geometries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpgrade Component\u003c\/strong\u003e — Significant improvement over budget bottom brackets commonly included with cranksets; delivers superior durability and smooth operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType: External Euro bottom bracket\u003c\/li\u003e\n\u003cli\u003eShell width: 68mm or 73mm\u003c\/li\u003e\n\u003cli\u003eThread size: 1.37 inch × 24 TPI (English)\u003c\/li\u003e\n\u003cli\u003eAxle diameter: 24mm\u003c\/li\u003e\n\u003cli\u003eCup material: 6061-T6 cold-forged and CNC-machined aluminum\u003c\/li\u003e\n\u003cli\u003eBearing system: Precision sealed bearings with dual-labyrinth covers\u003c\/li\u003e\n\u003cli\u003eWeight: 105g (3.7 oz)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility \u0026amp; Ideal Use Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCompatible with Box Three and Four cranks and frames featuring 68mm or 73mm × 1.37-inch English-threaded bottom bracket shells. Ideal for BMX cruisers, freestyle bikes, and single-speed builds using Box cranks. The sealed bearings and labyrinth covers make this component well-suited for casual riders and those in wet climates seeking reliable, low-maintenance performance. An essential upgrade from stock bottom brackets for riders prioritizing smooth rotation and component longevity. Not compatible with press-fit or metric-threaded shells.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003ci\u003e\u003cu\u003e\u003cspan style=\"font-size: small;\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/i\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003ci style=\"font-size: 0.875rem;\"\u003e\u003cu\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/i\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003ci style=\"font-size: 0.875rem;\"\u003e\u003cu\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cb\u003e**Due to unique nature of this item, ALL sales of this product are FINAL. No Refunds or Returns**\u003c\/b\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/i\u003e\u003c\/div\u003e","brand":"Box","offers":[{"title":"Black","offer_id":45335061397683,"sku":"BX-BB17000EX-BK","price":64.99,"currency_code":"USD","in_stock":true},{"title":"Blue","offer_id":45335061430451,"sku":"BX-BB17000EX-BL","price":64.99,"currency_code":"USD","in_stock":false},{"title":"Red","offer_id":45037878837427,"sku":"BX-BB17000EX-RD","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8737\/2979\/files\/box-two-external-euro-24mm-bottom-bracket_af327d96-11ed-49a0-be09-28368c34f10c.jpg?v=1783444952","url":"https:\/\/time2shinebmx.com\/products\/box-two-external-euro-24mm-bottom-bracket","provider":"Time 2 Shine ","version":"1.0","type":"link"}