{"product_id":"s-m-19mm-24mm-mid-bb-kit","title":"S\u0026M 19mm \/ 24mm Mid BB Kit","description":"\u003ch1\u003eS\u0026amp;M 19mm \/ 24mm Mid BB Kit\u003c\/h1\u003e\n\u003cp\u003eThe S\u0026amp;M Mid BB Kit is a complete press-fit mid bottom bracket set available in both 19mm and 24mm spindle sizes, built around R-12 bearings and CNC machined anodised aluminium cone spacers. A full replacement or new build BB set covering the two most common BMX spindle diameters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable in 19mm and 24mm spindle sizes\u003c\/strong\u003e — Covers the two standard BMX crank spindle diameters; confirm your crank spindle size before ordering as these are not interchangeable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eR-12 bearings\u003c\/strong\u003e — High-quality R-12 rated bearings provide smooth, low-friction rotation and reliable load handling under the lateral and radial forces generated by pedaling and riding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC machined anodised aluminium cone spacers\u003c\/strong\u003e — Precision machined spacers ensure accurate bearing positioning and consistent preload within the BB shell; anodising provides corrosion resistance and surface hardness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePress-fit mid BB compatible\u003c\/strong\u003e — Designed specifically for press-fit mid BB shells, the most widely used BB standard in BMX; not compatible with Spanish or euro BB shells\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpindle-specific center spacers\u003c\/strong\u003e — 19mm version uses a 2.005\" (51mm) center spacer; 24mm version uses a 2.028\" (51.5mm) center spacer, each sized to correctly position the bearings for their respective spindle diameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: S\u0026amp;M Bikes\u003c\/li\u003e\n\u003cli\u003eBB shell compatibility: Press-fit mid\u003c\/li\u003e\n\u003cli\u003eSpindle options: 19mm \/ 24mm\u003c\/li\u003e\n\u003cli\u003eBearings: R-12\u003c\/li\u003e\n\u003cli\u003eSpacers: CNC machined anodised aluminium cone\u003c\/li\u003e\n\u003cli\u003e19mm center spacer: 2.005\" (51mm)\u003c\/li\u003e\n\u003cli\u003e24mm center spacer: 2.028\" (51.5mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility and Ideal Use Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCompatible with press-fit mid BB shell frames only — not suitable for Spanish or euro BB shells. Select 19mm or 24mm to match your crank spindle diameter. Best suited to riders replacing a worn or damaged mid BB set or building up a new bike requiring a complete bottom bracket assembly.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"S\u0026M Bikes","offers":[{"title":"19mm","offer_id":45037088571571,"sku":"06-BB-PF19","price":26.95,"currency_code":"USD","in_stock":true},{"title":"24mm","offer_id":45037088538803,"sku":"06-BB-PF24","price":34.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8737\/2979\/files\/bb_19mm_dbadccdc-f285-4086-ac83-47847afc33a0.jpg?v=1783463398","url":"https:\/\/time2shinebmx.com\/products\/s-m-19mm-24mm-mid-bb-kit","provider":"Time 2 Shine ","version":"1.0","type":"link"}