{"product_id":"ethirteen-helix-race-107-bcd-chainring-chainrings-cnrg2028","title":"e*thirteen Helix R 107 BCD 40t Alloy Chainring - 11 - 12-Speed, CNC Machined 7075 Aluminum, Narrow-Wide Teeth, for Gravel \u0026 Road Cycling, Black","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eElevate your gravel and road cycling performance with the ethirteen Helix R 107 BCD 4-Bolt Chainring - a high-performance, lightweight upgrade designed for serious riders. Crafted from premium 7075-T6 aluminum, this 40-tooth chainring combines exceptional durability with CNC machining precision for a sleek, technical aesthetic. Its 107mm BCD (bolt circle diameter) and 4-bolt compatibility make it an ideal replacement for SRAM Red, Force, and Quarq power meter cranks, providing seamless integration with 11 and 12-speed drivetrains for a versatile and reliable riding experience.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-2\"\u003e\u003cp\u003eInnovative M4 narrow-wide tooth profile ensures superior chain retention across rugged terrains and high-speed descents, reducing chain drop and wear for increased longevity. The chainring's optimized design features a 4.8mm chainline offset, compatible with both standard (45mm) and wide (47.5mm) cranksets, enhancing clearances and drivetrain efficiency. Its black finish not only looks sleek but also offers resistance against scratches and corrosion, ensuring long-lasting performance in demanding outdoor conditions.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-3\"\u003e\u003cp\u003eDesigned for riders seeking a combination of strength, stiffness, and lightweight performance, the ethirteen Helix R Chainring is perfect for gravel grinders, road racers, and mountain bikers who demand precision engineering and advanced technology. Upgrade your gear with confidence, knowing this chainring delivers excellent power transfer, reduced wear, and enhanced durability for all your cycling adventures.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003eEnhanced durability and performance with the e*thirteen Helix R 107 BCD 40t Chainring crafted from premium 7075-T6 aluminum, offering exceptional strength and lightweight design for competitive Gravel and Road riding.\u003c\/li\u003e\n\u003cli\u003eEngineered for precision, this 4-bolt chainring features CNC sculpting and an M4 narrow-wide tooth profile to ensure optimal chain retention, compatibility with Shimano and SRAM 11\/12-speed drivetrains, and reduced chain wear over long rides.\u003c\/li\u003e\n\u003cli\u003eDesigned for versatile use, the 107 BCD 40-tooth chainring seamlessly pairs with e*thirteen's cassette range to deliver increased gear range, higher top speeds, and smooth shifting for all cycling disciplines.\u003c\/li\u003e\n\u003cli\u003eInnovative features include compatibility with SRAM Red or Force cranksets, including power meter cranks, providing cyclists with data-driven performance improvements and reliable power transfer under demanding conditions.\u003c\/li\u003e\n\u003cli\u003eSleek black finish with a precise 74g weight, combining technical aesthetics with functional engineering-perfect for cyclists seeking durability, style, and advanced technology in their drivetrain components.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"e*thirteen","offers":[{"title":"Default Title","offer_id":42201909985347,"sku":"CNRG2028","price":79.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/CR4211.jpg?v=1773592268","url":"https:\/\/365cycles.com\/products\/ethirteen-helix-race-107-bcd-chainring-chainrings-cnrg2028","provider":"365 Cycles","version":"1.0","type":"link"}