{"product_id":"helix-race-cassette-12s-13-52t-e-thirteen-eggplant","title":"Ethirteen Helix Sram XD Cassette 12s 13-52T","description":"e*thirteen Helix Race Cassette 12 speed 13-52T Eggplant\u003cbr\u003e\nCompatible with Sram XD and XDR drivers\u003cbr\u003e\u003cbr\u003eA close-ratio cassette specifically for e-bikes. 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.\u003cbr\u003e\nThe 13T, in combination with a 32T chainring, at 85rpm cadence, will deliver speeds at or just above 32kmph\/20mph, which is just beyond the speed-limited assistance of most e-bikes. The new 52T lowest gear and closer steps help riders clean the most technical climbs with newfound ease.\u003cbr\u003e\nWhile the Helix R 13-52T was conceived with e-bikes in mind, it improves the ride experience for non-e-bike riders, too, allowing them to optimize their cadence on steep climbs and let gravity do the work on descents.\u003cbr\u003e\nLike all e*thirteen Helix cassettes, the Helix Race 13\/52t delivers seamless cross-compatibility with SRAM, Shimano, and TRP 12s drivetrains, as well as improved shifting precision and wear life. Weighing in at 467g, the cogs are reinforced for high-powered e-bikes, yet light enough for weight-optimized trail bikes.\u003cbr\u003e\nExperience the advantages of a close-ratio cassette on your next ride, with the Helix R 13-52T.\u003cbr\u003e\nClose ratio gearing cassette for better cadence and improved shifts under load\u003cbr\u003e\nLower fatigue and extended range (Bio or Battery) with sweet spot cadence for max efficiency\u003cbr\u003e\nHelix R 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\u003cbr\u003e\nCross-compatibility with Shimano, SRAM, and TRP drivetrains and chains\u003cbr\u003e\nAluminum and Steel clusters can be replaced separately to reduce service cost\u003cbr\u003e\nPatented two-piece aluminum\/steel construction for strength, stiffness, light weight, and durability\u003cbr\u003e\nReinforced for e*spec strength - 467g weight\u003cbr\u003e\n5 bold anodized or PVD color options\u003cbr\u003e\nTested extensively for analog and e-bike use\u003cbr\u003e\nPRODUCT SPEC\u003cbr\u003e\nFreehub Mount XD™ and XDR™ Drivers Only\u003cbr\u003e\nMaterial 2 aluminum cogs, 10 steel cogs. PVD finishing on Intergalactic model improves durability and wear life.\u003cbr\u003e\nSize 13-52T: 13, 15, 17, 19, 22, 25, 28, 32, 36, 40, 45, 52\u003cbr\u003e\nSpeeds 12 Speed\u003cbr\u003e\nWeight 467g\u003cbr\u003e","brand":"Ethirteen","offers":[{"title":"FW2HRA-109","offer_id":50396502556951,"sku":"","price":569.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0764\/3486\/6455\/files\/Helix_Race_Cassette_12_speed_13-52T_ethirteen_eggplant.jpg?v=1745073175","url":"https:\/\/shop.bikesandscooters.co.nz\/products\/helix-race-cassette-12s-13-52t-e-thirteen-eggplant","provider":"Bikes \u0026 Scooters Marlborough","version":"1.0","type":"link"}