Zoom Hydraulic Disc Brake Caliper : HB-100 MTB Bike Brake Caliper Front + Rear Set for Mountain Road Bike E-Bike (Red)

Hydraulic power without the extreme sensitivity of a hydraulic system. Can much more easily meter your braking force. Applied braking force is more of an upwards gradual curve rather than a linear, steep straight line. Feathering the brakes on a downhill seems to be much easier than with a purely hydraulic system, yet still has the stopping power of hydraulic. They’ve worked flawlessly thus far. They were a breeze to install and set up, and they look good.

Really impressed! Look good. Easy install and work perfectly.

Great item! This was an easy install and upgrade to our e-bike. Our e-bikes had cable actuated disk brakes. With a heavy e-bike, this left a lot to be desired. We also tow a doggy trailer. It took a lot of force and distance to stop with the stock disk brakes. This was a simple and cheap upgrade. The stopping distance was reduced substantially. Just a note that these were used on 180mm disks using the stock mounting adapter, not the ones that came with these. Took less than 20 minutes per brake to install. I selected these because they use to stock brake cable, thus maintaining the motor cut-out and brake light. Highly recommend!

Excellent stopping power and easy to swap out from the traditional cable brakes. The red looks sharp. They were super easy to adjust the work nice and smooth and have no leaks

Performance & Aesthetics: The Zoom HB-100 is a game-changer for those who want hydraulic power without the hassle of a full system swap. As a cable-actuated hydraulic brake, it gives you that crisp, dual-piston stopping power while letting you keep your existing mechanical levers. What really surprised me was the design and color. The finish looks incredibly professional—it has a premium, sleek appearance that makes the bike look much more expensive than it actually is. The build quality feels solid and the anodized-style coloring is top-notch. The "Missing Piece" for a Perfect Fit: While the product is great, it’s missing one thing that would make it a 10/10: a rotor setting/alignment tool. Because these are dual-piston calipers, the gap between the pads and the rotor is very precise. Without an alignment shim included in the box, getting a "perfect fit" without rotor rub is much harder than it needs to be. Including a simple metal setting tool would make this the ultimate "plug-and-play" upgrade for every enthusiast escooters, ebikes and cyclists. Pros: Professional Design: Looks sleek and high-end on the bike. Hybrid Tech: Best of both worlds (Hydraulic power + Mechanical compatibility). Dual-Piston: Even pad wear and great modulation. Cons: No Alignment Tool: Needs a separate rotor shim to get that perfect, rub-free setup. Final Verdict: An amazing value upgrade that looks as good as it performs. To the seller: Include a rotor setting tool and this will be the best-selling brake kit on Amazon!