{"title":"E-MTB Chainrings","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eHeavier bikes hit rocks harder. Motor torque demands more from your drivetrain. Our E-MTB chainrings are engineered for this reality. M4 narrow-wide profile for chain retention and wear life. Direct mount for Bosch®, Shimano®, TQ®, Fazua®, Avinox®, Specialized®. Turbocharger adds bashguard protection where ISCG mounts aren't an option.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMotor-assisted torque and added bike weight put unique demands on drivetrain components. We designed every e*spec chainring from the ground up to handle it, with reinforced tooth profiles and integrated dust covers that keep your system running clean.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/products\/helix-race-e-spec-chainring\" title=\"Best E-MTB Chainring\"\u003eHelix Race e*spec\u003c\/a\u003e is forged and CNC-machined from 7075 aluminum for lightweight strength and a refined aesthetic. Available for Bosch® CX Gen4\/Gen5, Bosch® SX, Shimano® EP8, TQ® HPR50, Fazua® Ride 60, Avinox®, and Specialized® SL 1.1, 2.1, and 2.2 motors. Multiple offset options let you dial in the perfect chainline.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/products\/turbocharger-race-104bcd-e-spec-spider-bashguard-and-chainring\" title=\"Bashguard for E-MTB\"\u003eTurbocharger Race\u003c\/a\u003e solves a problem most E-MTB riders know too well: compact motor systems leave your chainring exposed with no ISCG mounts for a traditional bashguard. The Turbocharger integrates a 104 BCD spider, composite bashguard, and Helix chainring into one system. Available for TQ® HPR50, Fazua® Ride 60, Bosch® SX, and Avinox®. Add the upper slider for complete chain retention.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/products\/helix-core-e-spec-chainring\" title=\"Best steel EMTB Chainring\"\u003eHelix Core e*spec \u003c\/a\u003edelivers cold-formed steel durability at a price that makes regular replacement painless.\u003c\/p\u003e\n\u003cp\u003eEvery e*spec ring is cross-compatible with Shimano®, SRAM®, and TRP® 11\/12-speed drivetrains including T-Type™.\u003c\/p\u003e","products":[{"product_id":"e-spec-direct-mount-chainring-steel","title":"e*spec Direct Mount Chainring","description":"\u003cp\u003eUpgrade your e-bike drivetrain with our e*spec Direct Mount Chainrings.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\" class=\"zfr3Q\" dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eOur M3 narrow-wide tooth profile reduces weight without compromising on chain-retention.\u003c\/span\u003e While the steel version is a direct OEM replacement, the premium aluminum versions provide cleaner aesthetics, lighter weight, and long-lasting performance perfect for when you're ready to upgrade from your original ring.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\" class=\"zfr3Q\" dir=\"ltr\"\u003e\u003cmeta charset=\"utf-8\"\u003eConquer your e-bike trails at a great price—power up your drivetrain now!\u003c\/p\u003e\n\u003cp style=\"text-align: left;\" class=\"zfr3Q\" dir=\"ltr\"\u003e\u003cem\u003eDon't see the size or configuration you need? Check out our updated Helix Core rings here: \u003ca href=\"https:\/\/ethirteen.eu\/products\/helix-core-e-spec-chainring\"\u003eHelix Core e*spec Chainrings\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"e*thirteen","offers":[{"title":"Bosch® CX Gen4 \/ Aluminum \/ 34T","offer_id":37912888803528,"sku":"CR4UPA-100","price":29.98,"currency_code":"EUR","in_stock":false},{"title":"Bosch® CX Gen4 \/ Aluminum \/ 36T","offer_id":37912888836296,"sku":"CR4UPA-101","price":29.98,"currency_code":"EUR","in_stock":false},{"title":"Bosch® CX Gen4 \/ Aluminum \/ 38T","offer_id":37912888869064,"sku":"CR4UPA-102","price":29.98,"currency_code":"EUR","in_stock":true},{"title":"Bosch® CX Gen4 \/ Steel (Bosch® only) \/ 36T","offer_id":49947261894992,"sku":"CR4USA-101","price":24.99,"currency_code":"EUR","in_stock":true},{"title":"Bosch® CX Gen4 \/ Steel (Bosch® only) \/ 38T","offer_id":49947261927760,"sku":"CR4USA-102","price":33.95,"currency_code":"EUR","in_stock":false},{"title":"Fazua Ride 50® \/ Aluminum \/ 32T","offer_id":49947261960528,"sku":"CR4EPA-101","price":29.99,"currency_code":"EUR","in_stock":false},{"title":"Fazua Ride 50® \/ Aluminum \/ 34T","offer_id":49947262026064,"sku":"CR4EPA-100","price":29.98,"currency_code":"EUR","in_stock":true},{"title":"Brose® \/ Aluminum \/ 34T","offer_id":49947262288208,"sku":"CR4UPA-103","price":29.99,"currency_code":"EUR","in_stock":true},{"title":"Brose® \/ Aluminum \/ 36T","offer_id":49947262353744,"sku":"CR4UPA-104","price":29.99,"currency_code":"EUR","in_stock":false},{"title":"Brose® \/ Aluminum \/ 38T","offer_id":49947262419280,"sku":"CR4UPA-105","price":31.98,"currency_code":"EUR","in_stock":false},{"title":"Shimano® EP8\/E8000\/E7000 \/ Aluminum \/ 32T","offer_id":49947262484816,"sku":"CR4UPA-109","price":39.99,"currency_code":"EUR","in_stock":false},{"title":"Shimano® EP8\/E8000\/E7000 \/ Aluminum \/ 34T","offer_id":49947262550352,"sku":"CR4UPA-106","price":39.99,"currency_code":"EUR","in_stock":false},{"title":"Shimano® EP8\/E8000\/E7000 \/ Aluminum \/ 36T","offer_id":49947262615888,"sku":"CR4UPA-108","price":39.99,"currency_code":"EUR","in_stock":false},{"title":"Shimano® EP8\/E8000\/E7000 \/ Aluminum \/ 38T","offer_id":49947262681424,"sku":"CR4UPA-107","price":39.99,"currency_code":"EUR","in_stock":true},{"title":"TQ®\/CL55 \/ Aluminum \/ 32T","offer_id":49947262746960,"sku":"CR4EPA-102","price":32.48,"currency_code":"EUR","in_stock":false},{"title":"TQ®\/CL55 \/ Aluminum \/ 34T","offer_id":49947262812496,"sku":"CR4EPA-103","price":32.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0094\/8040\/5089\/files\/CR4UPA-101_1_-web_1_30e85feb-64ee-4007-a6a8-9b71f469e46d.jpg?v=1742420769"},{"product_id":"e-spec-bcd104-spider","title":"e*spec 104 BCD Spider","description":"\u003ch4\u003eDirect power transfer. 104 BCD flexibility.\u003c\/h4\u003e\n\u003cp\u003eUpgrade your e-bike with e*thirteen's 104 BCD Spider, designed for seamless compatibility and efficiency. This spider enables the use of any 4-bolt standard chainring, offering a practical solution for cost-effective and eco-friendly chainring replacements. Made from durable 6-series alloy, it balances lightweight strength with the flexibility to pair with both long-lasting steel and lightweight alloy chainrings. Compatible with Bosch Gen4, Fazua Ride 60, Shimano EP8\/EP6, and TQ HPR 50\/60 systems, it's the ideal choice for enhancing your e-bike's performance.\u003c\/p\u003e","brand":"e*thirteen","offers":[{"title":"Bosch Gen4 (CL 55mm)","offer_id":47687404683600,"sku":"CR5EPA-103","price":35.95,"currency_code":"EUR","in_stock":true},{"title":"TQ HPR 50\/60 (CL 55mm)","offer_id":47687404716368,"sku":"CR5EPA-100","price":35.95,"currency_code":"EUR","in_stock":false},{"title":"Fazua Ride 60 (CL 55mm)","offer_id":47687404749136,"sku":"CR5EPA-101","price":35.95,"currency_code":"EUR","in_stock":false},{"title":"Shimano EP8\/EP6 (CL 55mm)","offer_id":47687404781904,"sku":"CR5EPA-102","price":35.95,"currency_code":"EUR","in_stock":false},{"title":"TQ HPR 50\/60 (CL 52mm)","offer_id":51619825844560,"sku":"CR5HAA-110","price":35.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0094\/8040\/5089\/products\/3_384d3c5d-77a9-42f4-a869-9f3078586458.png?v=1701708425"},{"product_id":"helix-e-spec-104bcd-7075-al-chainring","title":"Helix e*spec 104 BCD Aluminum Chainring","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eA lightweight and affordable e-bike spider compatible 104BCD chainring, with excellent chain retention and wear-life.    \u003c\/p\u003e\n\u003cp\u003eThe Helix e*spec 104BCD chainring features a lightweight, stiff, and durable 7075-AL construction and e*thirteen's latest M4 narrow-wide tooth profile for excellent chain retention and wear life. Helix performance and an affordable price make this the perfect match for any 104BCD spider or the e*thirteen Turbocharger spider-bashguard.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eM4 narrow-wide profile delivers enhanced chain retention and cross-compatibility with Shimano, Sram, and TRP 11\/12s drivetrains, including T-Type\u003c\/li\u003e\n\u003cli\u003eForged-CNC 7075 AL for ultralight weight, with high strength, stiffness, and wear-life\u003c\/li\u003e\n\u003cli\u003e32\/34T sizes complement e*thirteen wide range cassettes\u003c\/li\u003e\n\u003cli\u003eCompatible with 104BCD spider-based e-bike chainrings and e*thirteen Turbocharger Spider-Bashguard assemblies\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"e*thirteen","offers":[{"title":"32T","offer_id":49565766943056,"sku":"CR5HAA-100","price":39.95,"currency_code":"EUR","in_stock":true},{"title":"34T","offer_id":49565766910288,"sku":"CR5HAA-101","price":39.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0094\/8040\/5089\/files\/CR5HAA-101_S.jpg?v=1734592303"},{"product_id":"helix-core-e-spec-chainring","title":"Helix Core e*spec Steel E-MTB Chainring","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eHelix Core e*spec Direct Mount Chainrings feature our narrow-wide tooth profile, for reliable chain retention and an extra long wear life. Helix Core e*spec rings are cold-formed from steel and then heat-treated to provide excellent durability and toughness, all at a price that's easy on your wallet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLong-lasting and economical steel construction\u003c\/li\u003e\n\u003cli\u003eM4 narrow-wide tooth profile (our latest M5 profile on Avinox® rings) for excellent chain retention and Shimano®\/Sram® drivetrain compatibility\u003c\/li\u003e\n\u003cli\u003eCompatible with Sram\u003cmeta charset=\"utf-8\"\u003e® T-type\u003cmeta charset=\"utf-8\"\u003e® chains\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"e*thirteen","offers":[{"title":"Avinox \/ 34T","offer_id":53239559323984,"sku":"CR5HSA-102","price":39.95,"currency_code":"EUR","in_stock":false},{"title":"TQ \/ 32T","offer_id":49947172176208,"sku":"CR5HSA-100","price":24.99,"currency_code":"EUR","in_stock":true},{"title":"Bosch \/ 34T","offer_id":49947170144592,"sku":"CR5ESA-100","price":30.95,"currency_code":"EUR","in_stock":true},{"title":"Bosch \/ 36T","offer_id":49947170177360,"sku":"CR5ESA-101","price":30.95,"currency_code":"EUR","in_stock":true},{"title":"Shimano EP8 \/ 32T","offer_id":49947172208976,"sku":"CR5HSA-101","price":24.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0094\/8040\/5089\/files\/CR5HSA-102_1.jpg?v=1783663435"},{"product_id":"helix-race-e-spec-chainring","title":"Helix Race e*spec Chainring","description":"\u003ch4 class=\"p1\"\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(201, 37, 57);\" data-darkreader-inline-color=\"\"\u003eSave 35% on Bosch\u003cmeta charset=\"utf-8\"\u003e® 13mm Eggplant and Naranja rings while supplies last!\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eHelix 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 HPR 50\/60, Fazua Ride 60, Shimano EP8\/EP6, Avinox, as well as Specialized SL1.1 and 2.1\/2.2 motors. \u003c\/p\u003e\n\u003cp\u003eWith 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.\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003eBosch rings are offered in two offset options: \u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e13mm for 53mm chainline on CX Gen4\/SX and 55mm chainline on CX Gen5 bikes\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e15mm offset for 55mm chainline on CX Gen4\/SX, and 57mm chainline on CX Gen5 \u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ethirteen Europe GmbH","offers":[{"title":"Bosch - 13mm Offset \/ Sterling Silver \/ 32T","offer_id":49947341979984,"sku":"CR5HRA-127","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Bosch - 13mm Offset \/ Sterling Silver \/ 34T","offer_id":49947342012752,"sku":"CR5HRA-128","price":84.95,"currency_code":"EUR","in_stock":false},{"title":"Bosch - 13mm Offset \/ Black \/ 32T","offer_id":49947341750608,"sku":"CR5ERA-100","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Bosch - 13mm Offset \/ Black \/ 34T","offer_id":49947341816144,"sku":"CR5ERA-101","price":84.95,"currency_code":"EUR","in_stock":false},{"title":"Bosch - 13mm Offset \/ Black \/ 36T (Bosch 13mm and Avinox only)","offer_id":49947341947216,"sku":"CR5HRA-126","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Bosch - 13mm Offset \/ Bronze \/ 32T","offer_id":49947341619536,"sku":"CR5ERA-102","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Bosch - 13mm Offset \/ Bronze \/ 34T","offer_id":49947341685072,"sku":"CR5ERA-103","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Bosch - 13mm Offset \/ Eggplant Purple \/ 32T","offer_id":49947341488464,"sku":"CR5ERA-104","price":34.99,"currency_code":"EUR","in_stock":true},{"title":"Bosch - 13mm Offset \/ Eggplant Purple \/ 34T","offer_id":49947341521232,"sku":"CR5ERA-105","price":34.99,"currency_code":"EUR","in_stock":true},{"title":"Bosch - 13mm Offset \/ Naranja Orange \/ 32T","offer_id":49947341554000,"sku":"CR5ERA-106","price":34.99,"currency_code":"EUR","in_stock":true},{"title":"Bosch - 13mm Offset \/ Naranja Orange \/ 34T","offer_id":49947341586768,"sku":"CR5ERA-107","price":34.99,"currency_code":"EUR","in_stock":true},{"title":"Bosch - 15mm Offset \/ Sterling Silver \/ 32T","offer_id":49947341881680,"sku":"CR5HRA-102","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Bosch - 15mm Offset \/ Sterling Silver \/ 34T","offer_id":49947341914448,"sku":"CR5HRA-103","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Bosch - 15mm Offset \/ Black \/ 32T","offer_id":49947341783376,"sku":"CR5HRA-100","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Bosch - 15mm Offset \/ Black \/ 34T","offer_id":49947341848912,"sku":"CR5HRA-101","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Bosch - 15mm Offset \/ Bronze \/ 32T","offer_id":49947341652304,"sku":"CR5HRA-116","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Bosch - 15mm Offset \/ Bronze \/ 34T","offer_id":49947341717840,"sku":"CR5HRA-117","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Shimano EP8\/EP6 \/ Sterling Silver \/ 32T","offer_id":49947347026256,"sku":"CR5HRA-114","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Shimano EP8\/EP6 \/ Sterling Silver \/ 34T","offer_id":49947347059024,"sku":"CR5HRA-115","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Shimano EP8\/EP6 \/ Black \/ 32T","offer_id":49947347091792,"sku":"CR5HRA-112","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Shimano EP8\/EP6 \/ Black \/ 34T","offer_id":49947347124560,"sku":"CR5HRA-113","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Specialized Turbo Levo 2.1\/2.2 \/ Sterling Silver \/ 34T","offer_id":49947347419472,"sku":"CR5HRA-125","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Specialized Turbo Levo 2.1\/2.2 \/ Black \/ 34T","offer_id":49947347485008,"sku":"CR5HRA-124","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Specialized Kenevo\/ Levo SL 1.1 \/ Sterling Silver \/ 32T","offer_id":49947347747152,"sku":"CR5HRA-123","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Specialized Kenevo\/ Levo SL 1.1 \/ Black \/ 32T","offer_id":49947347812688,"sku":"CR5HRA-122","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"TQ HPR 50\/60 \/ Sterling Silver \/ 32T","offer_id":49947348107600,"sku":"CR5HRA-110","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"TQ HPR 50\/60 \/ Sterling Silver \/ 34T","offer_id":49947348140368,"sku":"CR5HRA-111","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"TQ HPR 50\/60 \/ Black \/ 32T","offer_id":49947348173136,"sku":"CR5HRA-108","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"TQ HPR 50\/60 \/ Black \/ 34T","offer_id":49947348205904,"sku":"CR5HRA-109","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Fazua  Ride 60 \/ Sterling Silver \/ 32T","offer_id":49947348468048,"sku":"CR5HRA-106","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Fazua  Ride 60 \/ Sterling Silver \/ 34T","offer_id":49947348500816,"sku":"CR5HRA-107","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Fazua  Ride 60 \/ Black \/ 32T","offer_id":49947348533584,"sku":"CR5HRA-104","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Fazua  Ride 60 \/ Black \/ 34T","offer_id":49947348566352,"sku":"CR5HRA-105","price":84.95,"currency_code":"EUR","in_stock":false},{"title":"Avinox \/ Sterling Silver \/ 34T","offer_id":51353958875472,"sku":"CR5ERA-116","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Avinox \/ Sterling Silver \/ 36T (Bosch 13mm and Avinox only)","offer_id":51353958908240,"sku":"CR5ERA-117","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Avinox \/ Black \/ 34T","offer_id":51353958941008,"sku":"CR5ERA-114","price":84.95,"currency_code":"EUR","in_stock":false},{"title":"Avinox \/ Black \/ 36T (Bosch 13mm and Avinox only)","offer_id":51353958973776,"sku":"CR5ERA-115","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Avinox \/ Bronze \/ 34T","offer_id":51353959006544,"sku":"CR5ERA-118","price":84.95,"currency_code":"EUR","in_stock":true},{"title":"Avinox \/ Bronze \/ 36T (Bosch 13mm and Avinox only)","offer_id":51353959039312,"sku":"CR5ERA-119","price":84.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0094\/8040\/5089\/files\/CR5ERA-103-2.jpg?v=1742421837"},{"product_id":"turbocharger-race-104bcd-e-spec-spider-bashguard-and-chainring","title":"Turbocharger Race 104BCD e*spec Spider, Bashguard and Chainring","description":"\u003cp\u003eThe Turbocharger Race e*spec Spider, Bashguard and 104 BCD Aluminum Chainring provide unprecedented drivetrain protection for compact e-bike motor systems, defending vulnerable motor and drivetrain parts from impacts and damage.\u003c\/p\u003e\n\u003cp\u003eTQ® HPR 50\/60, Fazua® Ride 60, Bosch® SX, and Avinox\u003cmeta charset=\"utf-8\"\u003e® motor systems leave the chainring and chain exposed to impacts on bikes, which are inevitably heavier than their non-e-brethren, yet lack standard ISCG mounts. e*thirteen’s e*spec Turbocharger integrates a rugged, lightweight, composite Bashguard with a 104 BCD Spider and Helix 104 BCD Chainring. Paired with the sleek Turbocharger Upper Slider, supreme chain retention comes standard.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes 104 BCD Spider, Bashguard, and AL-7075 Chainring assembly\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e32T and 34T Bashguard\/Chainring size options (Avinox 34T only)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompact, integrated aesthetic with TQ HPR 50\/60, Fazua Ride 60, Bosch SX, and Avinox systems. \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBosch SX model is also compatible with Bosch CX Gen 4 \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompatible with 104 BCD alloy or steel chainrings from any brand for simple and affordable chainring service with less waste\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTurbocharger-compatible Upper Sliders are available separately for e*thirteen e*spec Chainguides\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eM4 narrow-wide tooth profile for superior chain retention, long wear life, and compatibility with Shimano\u003cmeta charset=\"utf-8\"\u003e®, TRP\u003cmeta charset=\"utf-8\"\u003e®, and SRAM\u003cmeta charset=\"utf-8\"\u003e® 11\/12-speed drivetrains (including T-type)\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e\u003cb\u003eNote:\u003c\/b\u003e \u003cstrong\u003eThe Turbocharger is guaranteed compatible only with e*thirteen cranks. For non-e*thirteen cranks, \u003ca href=\"https:\/\/support.ethirteen.com\/hc\/en-us\/articles\/40141617591835-Turbocharger-Crank-Compatibility-Listings\" rel=\"noopener\" target=\"_blank\"\u003eplease check compatibility information here BEFORE ordering\u003c\/a\u003e. If your crank isn’t listed and you encounter issues, we can provide alternative solutions - just reach out to us via our support page.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"e*thirteen","offers":[{"title":"Bosch SX \/ CX Gen4 - 15.5mm \/ 32T","offer_id":51516517155152,"sku":"CR5TRA-100","price":99.95,"currency_code":"EUR","in_stock":true},{"title":"Bosch SX \/ CX Gen4 - 15.5mm \/ 34T","offer_id":51516517187920,"sku":"CR5TRA-103","price":99.95,"currency_code":"EUR","in_stock":true},{"title":"Fazua Ride 60 - 18mm \/ 32T","offer_id":51516517220688,"sku":"CR5TRA-101","price":99.95,"currency_code":"EUR","in_stock":true},{"title":"Fazua Ride 60 - 18mm \/ 34T","offer_id":51516517253456,"sku":"CR5TRA-104","price":99.95,"currency_code":"EUR","in_stock":true},{"title":"TQ HPR 50\/60 - 12mm \/ 32T","offer_id":51516517286224,"sku":"CR5TRA-102","price":99.95,"currency_code":"EUR","in_stock":true},{"title":"TQ HPR 50\/60 - 12mm \/ 34T","offer_id":51516517318992,"sku":"CR5TRA-105","price":99.95,"currency_code":"EUR","in_stock":true},{"title":"Avinox - 8mm \/ 34T","offer_id":51516517351760,"sku":"CR5TRA-121","price":99.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0094\/8040\/5089\/files\/CR5TRA-100_S1.jpg?v=1749784180"},{"product_id":"helix-race-carbon-chainring-bolt-kit","title":"Chainring Bolt Kits","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eHelix Race Carbon Chainring Bolt kit \u003c\/strong\u003e- \u003c\/span\u003e\u003cspan\u003eCompatible with Helix Race Carbon Cranks and Helix Race 8-bolt Chainrings. Unique 4-bolt system reduces weight and complexity. *While the unique design of e*thirteen’s 8-Bolt chainrings requires only 4 bolts, if you are using 8-Bolt standard rings from other brands, all 8 bolts must be used.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eTurbocharger Race e*spec Bolt Kit\u003c\/strong\u003e\u003cspan\u003e\u003cstrong\u003e \u003c\/strong\u003e- Replacement nuts, bolts and crank tab spacers for mounting e*thirteen or 3rd party 104 BCD Chainrings to Turbocharger Spider and Bashguard\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eNuts and Bolts Kit for 104 BCD and 107 BCD Spiders - \u003c\/strong\u003eReplacement fasteners for e*thirteen 104 BCD and 107 BCD Direct Mount Chainring Spiders. Compatible with Helix e*spec 104 BCD Chainrings, Helix Race 107 BCD Chainrings, and all 3mm thickness chainrings.\u003c\/span\u003e\u003c\/p\u003e","brand":"e*thirteen","offers":[{"title":"Helix Race Carbon Chainring Bolt Kit","offer_id":52666877706576,"sku":"CSS50-109","price":9.95,"currency_code":"EUR","in_stock":true},{"title":"Turbocharger Race e*spec Bolt Kit","offer_id":52666877739344,"sku":"CRS50-102","price":18.95,"currency_code":"EUR","in_stock":true},{"title":"Nuts and Bolts Kit for 104 BCD and 107 BCD Spiders","offer_id":52666877772112,"sku":"CRS50-100","price":9.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0094\/8040\/5089\/files\/CSS50-109.jpg?v=1758164992"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0094\/8040\/5089\/collections\/CR5ERA-101-group2_b02d3ba9-fc75-4544-a96d-1417bc813a08.jpg?v=1783985353","url":"https:\/\/ethirteen.eu\/collections\/emtb-chainrings.oembed","provider":"e*thirteen Europe GmbH","version":"1.0","type":"link"}