Juin Tech M1 Cable Actuated Hydraulic Bicycle Bike Disc Brake Caliper Set Extra Powerful Hybrid Brake for Road/Mountain/Cyclocross/Gravel/E-Bike/Folding Bike etc. use

I convert one of my old bike to an e-bike and the original mechanical brake was making lot of noise and w/ the increased torque and speed of e-bike motor makes braking lot more harder and "scary" w/ the old mechanical disc brake. I was thinking about upgrading to a full hydraulic disc brake set, but had a not very smooth/easy hydraulic brake bleeding experience on another e-bike, I decide to take a chance and try this cable actuated hydraulic disc brake caliper by Juin Tech. Installation was very easy, I only need to replace the caliper and make minor adjustment and that was it, I did not need to change the rotor, adapters that came w/ the kit. So far I like the feel of this hydraulic disc brake caliper, these are very smooth and effective, no more noise and I feel much comfortable riding e-bike w/ higher speed and the brake stop the bike very well. Very happy with this brake upgrade; the only down-side is that you can only buy the whole kit and most the time you only need to change the caliper itself, so I was hoping that Juin can have an option to only buy the caliper and save us some money. Overall, these are good alternative to the fully hydraulic disc brake and getting a good braking power w/ good old simple cable pull brake lever.

I put these brakes on my 1000 watt e-bike. The stock brakes that come with most e-bikes are not good, unless you opt for hydraulic when purchasing. Mine were regular cable brakes, and this the best upgrade you can do to your e-bike.I replaced the rotor on the front tire, but just left the stock rotor tar on the back tire. The magic really happens in the hydraulic calipers anyhow. These brakes work wonderfully, probably a 30% increase in stopping power and no more brake noise. They stop smooth as silk even from 30 mph.I cannot recommend this kit enough, they are worth every penny if you have a faster e-bike with crummy stock calipers with cables.

I have a two wheel front-hub electric recumbent 26 X 20 with 160 rotors. I replaced my Avid BB7s with the Juin Tech M1s which are for electric bikes. My review is in comparison to the Avid BB7s - in terms of braking power, I perceive the Juin Techs to be a bit better. I don't get a "tire lock-up, tires skidding" effect from the brakes - and wouldn't want to. Instead, I get a smooth, linear stop and the braking distance is shorter with the Juin Techs. But where this brake absolutely shines is in terms of install and adjustment! Super-easy install and the adjustment "screw" is readily accessible when you need it. It just makes sense to design brakes this way. Hate adjusting BB7s? Hate that horrible brake rub? Then these brakes are what you're looking for - totally worth it.

Very easy installation and good quality. Made a huge difference in the stopping of my ebike, and no more squeaky brakes. They dont stop like true hydraulic brakes, but a HUGE improvement over the mechanical disc brakes.

As stated in headline, inside surface rubbed spokes. Filed inboard surface. Do this with a fine flat file. Check for fit often, don't remove too much. That done, these brakes are great, My Lectric 2.0 stops much better and no noise. The best modification so far on the bike.

I don’t think these were necessary. Honestly not impressed with the very small amount of braking over the original mechanical brakes on my Rad Mini. But once they are installed (which was a pain to line up so they didn’t rub) - I’m not taking them off. I wouldn’t bother.

Easy to install and they work great. High quality as described.

These brake calipers work great!