Development gradation tailored for cyclists and smooth gear shifts in both directions. Continue riding with the electric bike with progressive and lasting performance. Up to three times more durable than HYPERGLIDE under heavy use. Smooth shifting in both directions (into and out of the cassette) to reduce pedal kickback. High-quality metal design. Rider-friendly gradation of developments and smooth gear shifts in both directions. Continue with the e-bike with progressive and lasting performance. Up to three times more durable than HYPERGLIDE under heavy use. Smooth shifting in both directions (into and out of the cassette) to reduce pedal kickback.