{"product_id":"418mm-chainring-spacer-set-of-5-aluminum-alloy-cnc","title":"4.18mm Chainring Spacer Set Of 5 Aluminum Alloy CNC Machined For Precision Chainline And Retention Lightweight Aircraft Grade Spacers Between Spider And Inner Chainring For MTB And Road Bikes","description":"\u003cdiv\u003e4.18mm Aluminum Chainring Spacers - 5pc CNC Set\u003cbr\u003e\n✔️ 5 aluminum spacers: outer 12.1mm, inner 8.05mm, 4.18mm thick \u003cp\u003eThese spacers are CNC machined from aircraft-grade aluminum to ensure lightweight strength. They sit between the spider and inner chainring to fine-tune chainline and retention on MTB and road bikes.\u003c\/p\u003e ✅ Set of 5 spacers\u003cbr\u003e\n✅ 4.18mm thickness\u003cbr\u003e\n✅ Outer diameter 12.1mm, inner diameter 8.05mm\u003cbr\u003e\n✅ CNC machined from aircraft-grade aluminum\u003cbr\u003e\n✅ Made in the USA for reliable performance\u003cbr\u003e \u003cp\u003e💡 What is the recommended approach to use a 4.18mm chainring spacer to correct chainline on frames with varying cassette positions while preserving chain retention?\u003c\/p\u003e\nUsing spacers lets you dial in alignment for smoother shifts and better chain retention.\n- Aligns chainring offset with cassette for consistent chainline\n- Improves shifting by keeping the chain path straight across rings\n- Lightweight aircraft-grade aluminum spacer adds strength without weight gain\n\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48522454401259,"sku":"VXB077S1HC26","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/51ql1iyLsKL.jpg?v=1779587611","url":"https:\/\/vxb.com\/products\/418mm-chainring-spacer-set-of-5-aluminum-alloy-cnc","provider":"VXB Bearings","version":"1.0","type":"link"}