E-Bike Brake Upgrade Set, 2-pin/3-pin Brake Lever with Bell, Zoom XTECH HB-100 Line Pulling Hydraulic Calipers, Cable Kit and 160mm Rotors for Electric Bikes

This is a set of cable actuated hydraulic brakes. Included is a set of disk rotors. The brake levers include the brake inhibitor wires so these should work on an exit. I installed it on my regular bike.Install was easy. Just remove the old cable actuated caliper and install this caliper. Adjust the brakes and you are all set.Because it is hydraulic it should be self adjusting once the initial adjustment is done.How did it perform?I'm kind of mixed here. The breaking is good but you still have to squeeze the break lever hard to brake, just like the old mechanical brakes. Performance is definitely nowhere near as good as a full hydraulic setup. It's a compromise.Quality seems ok and price is reasonable.

Not even a slip of paper with a link to a site with installation help. Nor does the seller's Amazon page provide any guidance. It's pretty much up to the purchaser to figure out installation on their own. Either that, or search the Internet for help.In my case, I found a video of a guy installing the same Zoom brakes. Plus, I had already replaced a Tektro Aries caliper brake before on my own bike. This set is for my wife's bike, whose Tektro brake also failed. Both failed the same way. You pull on the brake, hear a click, then the brake handle collapses to the handlebar without braking.After watching the video, installation went pretty well with no complications. Getting this hybrid brake aligned with the disc rotor took three attempts to get it where there was no rubbing of the pads against the rotor while it was free spinning. After properly tensioning the brake cable, the installation of the Zoom front brake was complete and ready for a test drive.Our test ride was our normal 11-mile path. During the ride, my wife said she could not tell any difference between the new and old brake. She did say she really liked how crisp and short the pull was with her new front brake. I attribute that to the time I took to properly align the Zoom brake and tension the cable for a short pull of the brake handle.Considering this is new hybrid technology, I only installed the front brake for now. We want to see how it performs before installing the rear.On the plus side, when I opened the box to inspect the parts, the box was free of hydraulic fluid. I took that as a good sign. In addition, all the parts were there.On the negative side, in addition to what I've already said about documentation: I am very concerned about the lack of an adjustment mechanism to take up the slack when the pads begin to wear. The Zoom brake is like the Tektro brake in that only one side of the caliper squeezes in. The other side, the side closest to the spokes, is stationary. It doesn't move.The Tektro caliper has an adjustment screw on the inside that you can turn to take up the extra space between the pad and the rotor as the inside pad wears down. Without this adjustment, the outside caliper pad needs to deform the rotor further and further toward the inside pad to engage the brake. A couple of clicks on the Tektro adjustment screw fixes that problem and makes the brake handle pull shorter. It's an easy maintenance item that takes less than a minute with no disassembly.As far as I can determine, the Zoom caliper has no means to adjust the inside stationary pad. That's a major deficiency in my book. But without any documentation, I'm left to my own conclusions. If this is true (I'm 99% sure it is) and I had known this before ordering, I wouldn't have ordered it. The only solution to reduce the gap between the rotor and the inside pad, as the pad wears down, is to loosen the two M5 mounting bolts and reposition the Zoom brake. Just like I did when installing it for the first time.This review will be updated as new information comes in.Minus 1-star for lack of documentation. Minus 1-star for lack of an adjustment mechanism for the inside pad. Minus 2-stars in the future if I 100% verify this is true.A caveat: I've read of people pulling out the yellow plastic spacer between the two pads, and then pushing on the mechanism to watch what the pads do. They said it ruined the brake. Something about hydraulic fluid leaking out and no way to refill it. So don't do that.