{"product_id":"e-thirteen-helix-r-107-bcd-4-bolt-chainring-40t-11-12-speed-107bcd-black","title":"e*thirteen Helix R 107 BCD 4-Bolt Chainring - 40t 11\/12-Speed 107BCD Black","description":"The e*thirteen Helix Race 107 BCD Chainring designed for 4-bolt 107 BCD cranks like SRAM Red or Force including power meter equipped cranks offers a performance upgrade for Gravel and Road cyclists. The 38 40 and 42 tooth rings pair perfectly with e*thirteen’s cassettes for more overall range and higher top speeds. Made from durable premium 7075 alloy they're CNC sculpted for a high stiffness-to-weight ratio. Compatible with both SRAM and Shimano 11 and 12-speed drivetrains.  Chainline is set by SRAM® Crank assembly.\u003cli\u003eCompatible with 4-bolt 107 BCD SRAM® cranks and Quarq® power meter cranks\u003c\/li\u003e\u003cli\u003eM4 narrow-wide tooth profile provides Shimano and SRAM 11\/12-speed chain compatibility (Including flattop chains) excellent chain retention and reduced wear\u003c\/li\u003e\u003cli\u003e4.8mm offset (Chainline is determined by SRAM® Crank assembly 45mm for normal width cranks 47.5mm for wide cranks)\u003c\/li\u003e\u003cli\u003eForged from premium 7075-T7 aluminum then extensively CNC optimized for light weight and technical aesthetics\u003c\/li\u003e\u003cli\u003eDurable 7075-T7 construction for long wear-life stiffness and strength\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing Position\/Type\u003c\/td\u003e\n\u003ctd\u003eChain Retaining Single Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTooth Count\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrivetrain Speeds\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRound or Oval\u003c\/td\u003e\n\u003ctd\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChainring BCD\u003c\/td\u003e\n\u003ctd\u003e107\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e74\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDefined Color\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTeeth\u003c\/td\u003e\n\u003ctd\u003e40T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e","brand":"Gio's Outdoors","offers":[{"title":"Default Title","offer_id":54008547836188,"sku":"CR4211","price":79.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/5051\/0364\/files\/dfe696f386f76cda2e5b7403957c4782eccf6920.jpg?v=1774736908","url":"https:\/\/pearlcitycycle.com\/products\/e-thirteen-helix-r-107-bcd-4-bolt-chainring-40t-11-12-speed-107bcd-black","provider":"Pearl City Cycle","version":"1.0","type":"link"}