{"product_id":"helix-race-carbon-e-spec-cranks-e-thirteen","title":"Helix Race Carbon e*spec Cranks e*thirteen","description":"\u003cp\u003eThe Helix Race Carbon e*spec Cranks deliver the ultimate strength‑to‑weight performance for Bosch SX, Brose S Mag, TQ HPR50, Avinox, and Specialized 2.2 \u0026amp; 3.1 motor systems. Built with an advanced carbon layup and a 21.5mm offset for perfect fit and Q‑factor alignment, these 160mm cranks offer exceptional stiffness, durability, and weight savings for trail and all‑mountain e‑MTB riding. Includes crank boots, sticker, and user manual.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003eHelix Race Carbon e*spec Cranks e*thirteen\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eExperience elite e‑MTB performance with the \u003cem\u003eHelix Race Carbon e\u003c\/em\u003espec Cranks*, engineered specifically for \u003cstrong\u003eBosch SX, Brose S Mag, TQ HPR50, Avinox, and Specialized 2.2 \u0026amp; 3.1\u003c\/strong\u003e motor systems. This 21.5mm‑offset, 160mm version is purpose‑built for riders who demand maximum strength, minimal weight, and flawless compatibility.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eDeveloped through years of refinement in carbon layup and molding, the Helix Race Carbon e*spec crankset delivers one of the highest strength‑to‑weight ratios in the e‑MTB world. ASTM 5 approved, they’re light enough for trail and all‑mountain riding yet strong enough for bike‑park laps and aggressive terrain.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eWith a weight of just \u003cstrong\u003e357g\u003c\/strong\u003e (21.5mm offset configuration), these cranks shed serious grams while maintaining the stiffness and durability expected by top riders. The 21.5mm offset ensures optimal fit and Q‑factor alignment for the supported motor systems, giving you a natural, efficient pedaling feel.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n\u003cli\u003eDesigned for Bosch SX, Brose S Mag, TQ HPR50, Avinox \u0026amp; Specialized 2.2 \/ 3.1\u003c\/li\u003e\n\u003cbr\u003e\n\u003cli\u003e21.5mm offset for ideal fit and Q‑factor\u003c\/li\u003e\n\u003cbr\u003e\n\u003cli\u003ePremium carbon construction for maximum strength‑to‑weight\u003c\/li\u003e\n\u003cbr\u003e\n\u003cli\u003eASTM 5 rated for aggressive riding\u003c\/li\u003e\n\u003cbr\u003e\n\u003cli\u003e160mm crank length for improved clearance and responsive pedaling\u003c\/li\u003e\n\u003cbr\u003e\n\u003cli\u003eGraphite finish\u003c\/li\u003e\n\u003cbr\u003e\n\u003cli\u003ePairs perfectly with the Helix Race e*spec Chainring (sold separately)\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n\u003cli\u003eCrankset\u003c\/li\u003e\n\u003cbr\u003e\n\u003cli\u003eCrank boots (x2)\u003c\/li\u003e\n\u003cbr\u003e\n\u003cli\u003eSticker\u003c\/li\u003e\n\u003cbr\u003e\n\u003cli\u003eUser manual\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n\u003cli\u003eCarbon\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eSpindle Compatibility\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n\u003cli\u003e24mm ISIS\u003c\/li\u003e\n\u003cbr\u003e\n\u003cli\u003e30mm ETOR\u003c\/li\u003e\n\u003cbr\u003e\n\u003cli\u003eSRAM DUB\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n\u003cli\u003e357g (21.5mm offset, Bosch SX \/ Brose S Mag \/ TQ HPR50 \/ Avinox \/ Specialized 2.2 \u0026amp; 3.1)\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e","brand":"Ethirteen","offers":[{"title":"CS5HRA-109","offer_id":51246769438944,"sku":null,"price":819.89,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0763\/3738\/1600\/files\/CS5HRA-110_1.webp?v=1774755738","url":"https:\/\/bikeapprentice.co.nz\/products\/helix-race-carbon-e-spec-cranks-e-thirteen","provider":"Bike Apprentice","version":"1.0","type":"link"}