{"product_id":"bb-un300-square-taper-jis-bottom-bracket-118mm-spi","title":"BB-UN300 Square Taper JIS Bottom Bracket 118Mm Spindle 73Mm Shell Width Shell ID 1.37 Fits JIS Cranksets For Ultra Smooth Pedaling And Solid Power Boost","description":"\u003cdiv\u003eBB-UN300 Square Taper JIS Bottom Bracket for 118mm Spindle\u003cbr\u003e\n✔️ 118mm (4.65in) spindle, 73mm (2.87in) shell, 34.8mm (1.37in) ID, JIS \u003cp\u003eThe BB-UN300 is a square-taper bottom bracket built for JIS cranksets. It's a reliable upgrade for road and mountain bikes, delivering smooth rotation and solid power transfer thanks to a hollow spindle and sturdy aluminum shell with corrosion resistance.\u003c\/p\u003e ✅ Spindle length: 118 mm (4.65 in) \u003cbr\u003e\n✅ BB shell width: 73 mm (2.87 in) \u003cbr\u003e\n✅ BB shell I.D.: 34.8 mm (1.37 in) \u003cbr\u003e\n✅ Compatible with JIS square-taper cranksets \u003cbr\u003e\n✅ Hollow spindle design reduces weight \u003cbr\u003e\n✅ Aluminum alloy shell for corrosion resistance \u003cbr\u003e \u003cp\u003e💡 What is a bottom bracket used for with JIS square-taper cranksets?\u003c\/p\u003e\nA handy explanation for riders considering an upgrade to improve pedaling efficiency.\n- What it does: connects crankset to frame and lets crank rotate smoothly\n- Handy note: ensure shell width and ID match your frame\n- Why JIS square-taper: common, secure, and easy to service \u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48523244699883,"sku":"VXB08C7DYM41","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/61GCjKtt9jL_65300cc7-5f73-434b-9e20-a607738b211a.jpg?v=1779592584","url":"https:\/\/vxb.com\/products\/bb-un300-square-taper-jis-bottom-bracket-118mm-spi","provider":"VXB Bearings","version":"1.0","type":"link"}