E-Thirteen Helix Race Cassette - 12-Speed 13-52t Gray

e*thirteen Helix Race Cassette - 12-Speed 13-52t Gray. Designed specifically for riders tackling steep terrain with frequent climbing and rapid shifts, the e*thirteen Helix Race 12-speed 13-52t cassette delivers precise, close ratio gearing that optimizes your ride. By concentrating more gear options where you spend the most time, this cassette enhances cadence control and torque management, resulting in more efficient climbs and smoother, reliable shifts—even under heavy load conditions. Its advanced design caters seamlessly to both analog and eBike setups, ensuring versatile performance across various riding styles.

• Close ratio gearing engineered for smoother, more responsive shifts under load
• Reduces rider fatigue and extends range (battery or bio) by maintaining an ideal cadence for maximum efficiency
• Compatibly designed for effortless integration with Shimano, SRAM, and TRP 12-speed drivetrains
• Patented 2-part construction offers exceptional strength, stiffness, lightweight performance, and ease of maintenance
• Extensively tested to guarantee durability and reliable function for both analog and eBike applications
• Compatible exclusively with XD™ and XDR™ driver bodies