{"product_id":"e13-helix-race-e-spec-齒片","title":"E13 Helix Race e*spec 齒片","description":"\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 \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"E13","offers":[{"title":"黑色 \/ 34T \/ Avinox","offer_id":46278346211425,"sku":"CR5ERA-114","price":504.0,"currency_code":"HKD","in_stock":false},{"title":"黑色 \/ 36T \/ Avinox","offer_id":46278346244193,"sku":"CR5ERA-115","price":504.0,"currency_code":"HKD","in_stock":false},{"title":"銀色 \/ 34T \/ Avinox","offer_id":46278346276961,"sku":"CR5ERA-116","price":504.0,"currency_code":"HKD","in_stock":false},{"title":"銅色 \/ 34T \/ Avinox","offer_id":46278346342497,"sku":"CR5ERA-118","price":504.0,"currency_code":"HKD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0259\/3636\/3617\/files\/CR5ERM-115.jpg?v=1785142862","url":"https:\/\/wholesale.hkbicycle.com\/en\/products\/e13-helix-race-e-spec-%e9%bd%92%e7%89%87","provider":"Chung Yung Cycle Co . Wholesale","version":"1.0","type":"link"}