{"product_id":"ethirteen-helix-race-12s-cassette-4","title":"E*thirteen Helix Race 12S cassette","description":"\u003ch2\u003eMore power, optimal cadence!\u003c\/h2\u003e\n\u003cp\u003eE*thirteen always seeks to bring something new to the table. That's why created the Helix cassette line – to offer unparalleled cross-compatibility without sacrificing performance. As e-bikes have become more popular, was decided set out to engineer a close-ratio cassette specifically for them. Enter the Helix Race 13-52T - a new 12-speed close-ratio cassette specifically engineered for steep terrain where climbing speeds are high and descents are gravity-powered. The 13T, combined with a 32T chainring, at 85rpm cadence, will deliver speeds at or just above 32kmph\/20mph, just beyond the speed-limited assistance of most e-bikes. The 52T lowest gear and closer steps help riders clean the most technical climbs with newfound ease. While the Helix R 13-52T was conceived for e-bikes, it also improves the ride experience for non-e-bike riders, allowing all riders to optimize cadence on steep climbs and let gravity do the work on descents. Like all e*thirteen Helix cassettes, the Helix Race 13-52t delivers seamless cross-compatibility with SRAM, Shimano, and TRP 12s drivetrains and improved shifting precision and wear life. \u003c\/p\u003e\n\u003ch2\u003e\n\u003cbr\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eExperience the advantages of a close-ratio cassette on your next ride with the Helix Race 13-52T. \u003c\/li\u003e\n\u003cli\u003eHelix Race 13-15-17-19-22-25-28-32-36-40-45-52 vs Eagle™  10-12-14-16-18-21-24-28-32-38-44-52\u003c\/li\u003e\n\u003cli\u003eAluminum and Steel clusters can be replaced separately to reduce service cost\u003c\/li\u003e\n\u003cli\u003ePatented two-piece aluminum\/steel construction for strength, stiffness, lightweight, and durability\u003c\/li\u003e\n\u003cli\u003eFreehub Mount: XD™ and XDR™ Drivers Only\u003c\/li\u003e\n\u003cli\u003eMaterial: 2 aluminum cogs, 10 steel cogs. PVD finishing on Intergalactic model improves durability and wear life.\u003c\/li\u003e\n\u003cli\u003eRange: 400%\u003c\/li\u003e\n\u003cli\u003eSize: 13-52T: 13, 15, 17, 19, 22, 25, 28, 32, 36, 40, 45, 52\u003c\/li\u003e\n\u003cli\u003eSpeeds: 12 Speed\u003c\/li\u003e\n\u003cli\u003eManufacturer weight: 467 g.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"E*thirteen","offers":[{"title":"Grey \/ 13-52","offer_id":48058213302513,"sku":"FW2HRA-110","price":397.79,"currency_code":"AUD","in_stock":true},{"title":"Intergalactic \/ 13-52","offer_id":48058213335281,"sku":"FW2HRA-111","price":397.79,"currency_code":"AUD","in_stock":true},{"title":"Bronze \/ 13-52","offer_id":48058213368049,"sku":"FW2HRA-108","price":397.79,"currency_code":"AUD","in_stock":true},{"title":"Black \/ 13-52","offer_id":48058213400817,"sku":"FW2HRA-124","price":397.79,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/1580\/4145\/files\/zm_20240722-120907.jpg?v=1776530425","url":"https:\/\/novasportsbikes.com\/products\/ethirteen-helix-race-12s-cassette-4","provider":"Nova Sports Bikes","version":"1.0","type":"link"}