{"product_id":"couronne-rennen-4-vis-filetee","title":"RENNEN 4-Bolt Threaded Chainring","description":"\u003cp\u003eThe \u003cb\u003eRennen 4-bolt threaded chainring\u003c\/b\u003e is the flagship model from American manufacturer \u003cb\u003eRennen Design Group\u003c\/b\u003e, CNC machined in the USA from \u003cb\u003eaerospace-grade 7075-T6 aluminium\u003c\/b\u003e — an alloy rated 83% stronger than the 6061 aluminium used on entry-level chainrings.\u003c\/p\u003e\n\u003cp\u003eIts key feature is its \u003cb\u003eintegrated thread\u003c\/b\u003e: the threads are machined directly into the body of the chainring, eliminating the need for chainring nuts and a chainring nut wrench. You simply screw the chainring bolt straight into the thread. Rennen was the first to offer this design, initially in 110 mm and then on its 104 mm models: it improves mounting accuracy and ensures almost zero runout.\u003c\/p\u003e\n\u003cp\u003eWith a thickness of \u003cb\u003e3\/16\" (approx. 4.8 mm)\u003c\/b\u003e and a weight of \u003cb\u003e79 g in 38T\u003c\/b\u003e, it is among the lightest chainrings on the market. Its dedicated \u003ci\u003esingle speed\u003c\/i\u003e tooth profile has been designed to extend tooth life. 104 mm BCD, compatible with 8- and 9-speed chains.\u003c\/p\u003e","brand":"RENNEN","offers":[{"title":"41","offer_id":57326917321084,"sku":"PBS_RENN074801","price":64.99,"currency_code":"EUR","in_stock":true},{"title":"42","offer_id":57326917288316,"sku":"PBS_RENN074800","price":64.99,"currency_code":"EUR","in_stock":true},{"title":"43","offer_id":57326917255548,"sku":"PBS_RENN074799","price":64.99,"currency_code":"EUR","in_stock":true},{"title":"44","offer_id":57326917222780,"sku":"PBS_RENN074798","price":64.99,"currency_code":"EUR","in_stock":false},{"title":"45","offer_id":57326917190012,"sku":"PBS_RENN074797","price":64.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/3444\/9318\/files\/16918.jpg?v=1787210169","url":"https:\/\/probikeshop.com\/en\/products\/couronne-rennen-4-vis-filetee","provider":"Probikeshop","version":"1.0","type":"link"}