{"product_id":"riro-110bcd-road-bike-chainring-50-34t-52-36t-53-39t-shimano-r7000-r8000-r9100","title":"RIRO 110BCD Road Bike Chainring 50\/34T 52\/36T 53\/39T Shimano","description":"\n\u003ch2\u003eRIRO 110BCD Road Bike Chainring — Ultralight 7075-T6 Aluminum, 4-Bolt Double Chainwheel\u003c\/h2\u003e\n\u003cp\u003eUpgrade your drivetrain with the \u003cstrong\u003eRIRO 110BCD Double Chainring\u003c\/strong\u003e, engineered for road cyclists who demand precise, smooth, and reliable gear changes. Compatible with Shimano 105 FC-R7000, FC-R8000, and FC-R9100 cranks, this CNC-machined chainring delivers exceptional stiffness and ultralight performance for every ride.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium 7075-T651 Aluminum Alloy (T6 Heat Treated):\u003c\/strong\u003e Aerospace-grade material offers a superior strength-to-weight ratio, keeping your setup light without sacrificing durability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull CNC Hollow Design (4.6mm Chainring Thickness):\u003c\/strong\u003e Precision CNC machining on both sides enhances rigidity while minimizing weight — approximately 155g–175g depending on tooth configuration.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Shift Pins \u0026amp; Down-Chain Notches:\u003c\/strong\u003e 6 upshift pins and multiple downshift notches work together for snappy, chain-drop-resistant gear transitions on 2×10S, 2×11S, and 2×12S drivetrains.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStripe Chamfer Design:\u003c\/strong\u003e The textured, chamfered profile adds rigidity and three-dimensional aesthetics while reducing overall weight.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountersunk Bolt Structure:\u003c\/strong\u003e Maximizes contact area with the chainring teeth, simplifies installation, and reduces unwanted noise during riding.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnodized Surface Finish:\u003c\/strong\u003e Hard anodizing protects against corrosion, keeps bolts secure, and cuts down on drivetrain noise.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded 9mm CNC-Machined Chainring Bolts:\u003c\/strong\u003e Integrated double chainring screws included — ready to install right out of the box.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRIRO\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBCD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e110 BCD\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTooth Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50\/34T | 52\/36T | 53\/39T\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7075-T651 Aluminum Alloy (T6 Heat Treated)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~155g (50\/34T) \/ ~165g (52\/36T) \/ ~175g (53\/39T)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpeed Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2×10S \/ 2×11S \/ 2×12S\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eShimano 105 FC-R7000, FC-R8000, FC-R9100 \u0026amp; other 110BCD cranks\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBolt Count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-Bolt\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eNote: All measurements are manually taken and may have slight deviations.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose the RIRO 110BCD Chainring?\u003c\/h3\u003e\n\u003cp\u003eWhether you're tackling steep climbs or pushing top-end speed on flat roads, the RIRO chainring's CNC triangle and texture structure ensures direct power transfer with every pedal stroke. The countersunk design and precision bolt holes mean you spend less time wrenching and more time riding. The included chainring bolts make installation straightforward for home mechanics and professional bike fitters alike.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-referee-side-toss-coin-double-face-sports-football-pattern-volleyball-portable-coin-souvenirs-gift-double-sided-design\"\u003eSports Accessories — Referee Toss Coin for Football \u0026amp; Volleyball\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/2m-light-stand-folding-telescoping-tripod-adjustable-photography-floor-lamp-holder-tripod-for-outdoor-picnics-camping-hiking\"\u003e2M Folding Telescoping Tripod for Outdoor Activities\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/medlineplus.gov\/exerciseandphysicalfitness.html\" target=\"_blank\" rel=\"noopener\"\u003eMedlinePlus on exercise and physical fitness\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What cranks is the RIRO 110BCD chainring compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: The RIRO 110BCD chainring is compatible with Shimano 105 FC-R7000, FC-R8000, and FC-R9100 cranks, as well as any other crankset using a 110 BCD (Bolt Circle Diameter) 4-bolt pattern. Always verify your crank's BCD before purchasing.\u003c\/p\u003e\n\u003ch4\u003eQ: What speed drivetrains does this chainring support?\u003c\/h4\u003e\n\u003cp\u003eA: This chainring supports 2×10-speed, 2×11-speed, and 2×12-speed drivetrains, making it versatile for a wide range of modern road bike groupsets.\u003c\/p\u003e\n\u003ch4\u003eQ: Are chainring bolts included with this chainring?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The RIRO 110BCD chainring comes with complimentary 9mm CNC-machined double chainring bolts, so you can install it directly without purchasing additional hardware.\u003c\/p\u003e\n\u003ch4\u003eQ: Which tooth combination should I choose — 50\/34T, 52\/36T, or 53\/39T?\u003c\/h4\u003e\n\u003cp\u003eA: The 50\/34T compact option is ideal for climbing and varied terrain. The 52\/36T mid-compact suits all-around road riding. The 53\/39T standard setup is best for flat roads and high-speed performance. Choose based on your riding style and the gradient of your typical routes.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What cranks is the RIRO 110BCD chainring compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The RIRO 110BCD chainring is compatible with Shimano 105 FC-R7000, FC-R8000, and FC-R9100 cranks, as well as any other crankset using a 110 BCD (Bolt Circle Diameter) 4-bolt pattern. Always verify your crank's BCD before purchasing.\"}}, {\"@type\": \"Question\", \"name\": \"What speed drivetrains does this chainring support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This chainring supports 2×10-speed, 2×11-speed, and 2×12-speed drivetrains, making it versatile for a wide range of modern road bike groupsets.\"}}, {\"@type\": \"Question\", \"name\": \"Are chainring bolts included with this chainring?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! The RIRO 110BCD chainring comes with complimentary 9mm CNC-machined double chainring bolts, so you can install it directly without purchasing additional hardware.\"}}, {\"@type\": \"Question\", \"name\": \"Which tooth combination should I choose — 50\/34T, 52\/36T, or 53\/39T?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The 50\/34T compact option is ideal for climbing and varied terrain. The 52\/36T mid-compact suits all-around road riding. 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Choose based on your riding style and the gradient of your typical routes.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"RIRO 110BCD Road Bike Chainring 50\/34T 52\/36T 53\/39T Shimano\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/products\/riro-110bcd-road-bike-chainring-50-34t-52-36t-53-39t-shimano-r7000-r8000-r9100\"}]}\u003c\/script\u003e","brand":"Nixie","offers":[{"title":"52-36T","offer_id":67583021154403,"sku":"1005013089459068-52-36T","price":134.75,"currency_code":"USD","in_stock":true},{"title":"50-34T","offer_id":67583021187171,"sku":"1005013089459068-50-34T","price":134.36,"currency_code":"USD","in_stock":true},{"title":"53-39T","offer_id":67583021219939,"sku":"1005013089459068-53-39T","price":135.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/2047\/6003\/files\/S0cd02122cd0247b6a1bd04858dc13abbA.webp?v=1790532843","url":"https:\/\/nixiehaven.com\/products\/riro-110bcd-road-bike-chainring-50-34t-52-36t-53-39t-shimano-r7000-r8000-r9100","provider":"Nixie","version":"1.0","type":"link"}