{"product_id":"104-bcd-chainring-40t-to-52t-cnc-7075-aluminum-nar","title":"104 BCD Chainring 40T To 52T CNC 7075 Aluminum Narrow Wide Round Design For MTB Road Ebike Grippy Chain Retention 7 To 12 Speed Compatible Durable Black Chainwheel","description":"\u003cdiv\u003e104 BCD CNC Aluminum Narrow-Wide Chainring 40-52T for MTB\u003cbr\u003e\n✔️ Fits 7-12 speed drivetrains, 4-bolt 104mm BCD, 7075 alloy \u003cp\u003eThis 104 BCD chainring is CNC machined from 7075 aluminum and features a narrow-wide tooth pattern to help keep the chain secure on rough terrain. It's designed to fit 4-bolt cranks and supports 7-12 speed drivetrains, making it a solid upgrade for MTB, road, and e-bike setups.\u003c\/p\u003e ✅ Material: 7075 aluminum\u003cbr\u003e\n✅ BCD: 104mm (4-bolt)\u003cbr\u003e\n✅ Tooth pattern: Narrow-wide\u003cbr\u003e\n✅ Sizes: 40T-52T\u003cbr\u003e\n✅ Speed compatibility: 7-12 speed\u003cbr\u003e\n✅ Includes: 4 chainring bolts\u003cbr\u003e \u003cp\u003e💡 What is a 104 BCD chainring used for on mountain and road bikes?\u003c\/p\u003e\n\u003cp\u003eA handy quick guide for riders.\u003c\/p\u003e\n- 104 BCD matches 4-bolt cranksets with a 104mm circle\n- Narrow-wide tooth design helps prevent chain drops on rough terrain\n- Works with 7-12 speed drivetrains for flexible gearing\n- 40T-52T range provides multiple gearing options\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48522367762667,"sku":"VXB0F21PKM3D","price":53.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/51GNMpSbmhL.jpg?v=1779586547","url":"https:\/\/vxb.com\/products\/104-bcd-chainring-40t-to-52t-cnc-7075-aluminum-nar","provider":"VXB Bearings","version":"1.0","type":"link"}