HELIX RACE 12-SPEED 13-52T CASSETTE

MORE POWER. OPTIMAL CADENCE. At e*thirteen, we're always striving to bring something new to the table. That's why we created the Helix cassette line - to offer unparalleled cross-compatibility without sacrificing performance. As e-bikes have become more popular, we set out to engineer a close-ratio cassette specifically for them. Enter the Helix R 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, 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. While 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