{"product_id":"bbb-bcr-04-roundabout-4-chainring-black-42t-104bcd","title":"BBB BCR-04 RoundAbout 4 Chainring Black 42T\/104BCD","description":"The BBB BCR-04 RoundAbout is a precision 4-chainring crankset component built for competitive road cycling. Featuring a 42-tooth outer ring with 104mm BCD (bolt circle diameter), this black chainring delivers consistent power transfer and reliable shifting across modern 4-arm crank systems. Engineered with durable steel construction and optimized tooth geometry, the RoundAbout ensures smooth engagement with compatible chains while maintaining the exacting tolerances demanded by performance-focused riders. Ideal for upgrading drivetrain efficiency on road bikes requiring a compact, high-quality chainring solution.","brand":"JHI","offers":[{"title":"Black","offer_id":56489536979323,"sku":"60-005","price":60.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/9191\/6831\/files\/fsa-104-bcd-chainring.webp?v=1791286319","url":"https:\/\/www.dublin2bike.ie\/products\/bbb-bcr-04-roundabout-4-chainring-black-42t-104bcd","provider":"Dublin2Bike","version":"1.0","type":"link"}