[{"id":139176771687,"handle":"all-chainrings","title":"All - Chainrings","updated_at":"2025-12-12T04:06:22-08:00","body_html":"","published_at":"2019-08-07T20:23:19-07:00","sort_order":"alpha-asc","template_suffix":"","disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"chainring"}],"published_scope":"global"},{"id":686518468978,"handle":"all-products","title":"All Products","updated_at":"2025-12-12T04:06:22-08:00","body_html":"","published_at":"2025-12-04T17:17:42-08:00","sort_order":"best-selling","template_suffix":"","disjunctive":false,"rules":[{"column":"variant_price","relation":"greater_than","condition":"0"},{"column":"variant_inventory","relation":"greater_than","condition":"0"}],"published_scope":"global"},{"id":265917366375,"handle":"color-line","updated_at":"2025-12-12T04:06:22-08:00","published_at":"2022-12-08T09:33:06-08:00","sort_order":"best-selling","template_suffix":"","published_scope":"global","title":"Color Line","body_html":"\u003cp\u003eIntroducing the vibrant and captivating e*thirteen Color Line! \u003cmeta charset=\"utf-8\"\u003eDiscover our distinctive color options, including Bronze, Eggplant, Naranja, Grey, Black, and Intergalactic, and give your bike a striking visual upgrade.\u003c\/p\u003e","image":{"created_at":"2022-12-13T09:51:54-08:00","alt":null,"width":500,"height":500,"src":"\/\/www.ethirteen.com\/cdn\/shop\/collections\/Capture03075.jpg?v=1670956465"}},{"id":685866713458,"handle":"deals","title":"Deals","updated_at":"2025-12-12T04:06:22-08:00","body_html":"Score deals up to 75% off on select e*thirteen MTB components on sale. Stock is limited. Grab what you need before it's gone.","published_at":"2025-11-20T10:23:48-08:00","sort_order":"manual","template_suffix":"deals-collection","disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"clearance"},{"column":"tag","relation":"equals","condition":"b2c"}],"published_scope":"global"},{"id":621466911090,"handle":"e-spec-chainrings","title":"E-MTB Chainrings","updated_at":"2025-12-12T04:06:22-08:00","body_html":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eE-MTB chainrings engineered for the motors that power your ride. Every e*spec chainring features our M4 narrow-wide tooth profile for superior chain retention and cross-compatibility with Shimano®, SRAM®, and TRP® drivetrains including T-type®. From forged 7075 aluminum Helix Race rings to durable steel Helix Core options, there's a chainring for every motor and every budget. Wide compatibility covers Bosch®, TQ®, Fazua®, Shimano® EP8, Avinox®, and Specialized® systems. Need extra protection for compact motors? The Turbocharger integrates a spider, bashguard, and chainring to defend your drivetrain from impacts.\u003c\/p\u003e","published_at":"2025-04-15T19:53:43-07:00","sort_order":"manual","template_suffix":"emtb-chainrings-collect","disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"chainring"},{"column":"tag","relation":"equals","condition":"e*spec"},{"column":"tag","relation":"equals","condition":"component"}],"published_scope":"global","image":{"created_at":"2025-04-15T20:51:05-07:00","alt":null,"width":1956,"height":1956,"src":"\/\/www.ethirteen.com\/cdn\/shop\/collections\/CR5ERA-101-group2.jpg?v=1744775465"}},{"id":138413178983,"handle":"service-parts","title":"Service Parts","updated_at":"2025-12-12T04:06:22-08:00","body_html":"\u003cp\u003eFind high-quality replacement parts for your e*thirteen cycling gear. Maintain peak performance with durable, precision-engineered components.\u003c\/p\u003e","published_at":"2019-07-28T21:01:03-07:00","sort_order":"best-selling","template_suffix":"service-2","disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"service parts"}],"published_scope":"global","image":{"created_at":"2020-05-29T12:09:09-07:00","alt":null,"width":2048,"height":2048,"src":"\/\/www.ethirteen.com\/cdn\/shop\/collections\/service-parts.jpg?v=1590779350"}}]
Save up to 53% on Bosch® 13mm Eggplant and Naranja rings while supplies last!
Helix R e*spec Chainrings merge cutting-edge design and performance. Designed as an upgrade for the most popular e-bike motor systems, this 1-piece direct mount chainring is forged and machined from 7075 AL. Boasting lightweight, durability, impressive stiffness, and a standout technical aesthetic, they're available for Bosch CX Gen4/Gen5, Bosch SX, TQ HPR50, Fazua Ride 60, Shimano EP8, Avinox, as well as Specialized SL1.1 and 2.1/2.2 motors.
With a long-wearing tooth profile and refined aesthetic, the integrated look, when paired with Helix Race Alloy e*spec cranks, is the ultimate upgrade to your e-bike.
The new M4 narrow-wide profile delivers enhanced chain retention and cross-compatibility with Shimano®, Sram®, and TRP® 11/12s drivetrain, including SRAM® T-Type®. It's available in a variety of Specialized® colors for coordination with e*thirteen cranks, cassettes, stems, tubeless valves, and more.
Bosch rings are offered in two offset options:
13mm for 53mm chainline on CX Gen4/SX and 55mm chainline on CX Gen5 bikes
15mm offset for 55mm chainline on CX Gen4/SX, and 57mm chainline on CX Gen5
Chainline
Bosch®: 13mm offset for 53mm chainline on CX Gen4/SX and 55mm chainline on CX Gen5
Bosch®: 15mm offset for 55mm chainline on CX Gen4/SX, and 57mm chainline on CX Gen5
Shimano®: 21.5mm offset for 55mm chainline
Specialized® Kenevo/Levo SL 1.1: -4mm offset for 52mm chainline
Specialized® Turbo Levo 2.1/2.2: 9mm offset for 52mm chainline
TQ® HPR50: 12mm offset for 55mm chainline
Fazua® Ride 60: 18mm offset for 55mm chainline
Avinox: 8mm offset for 55mm chainline
Lightweight, stiff, long wearlife, with technical aesthetics and enhanced chain retention. Cross-compatibility with Shimano®, Sram®, and TRP® 11/12s drivetrains.
Included
Bosch® rings only: Integrated Aluminum Dust Cover (rubber seal is specific to Helix Race cranks and not included)
