Size DHL Box Internal Dimensions (cm) Max Weight (kg) FedEx Equivalent (approx.)
XS Box 2 33.7 × 18.2 × 10 ~1 Small Box (8″×8″×8″)
S Box 3 33.7 × 32.2 × 10 ~2 Medium Box (12″×12″×10″)
M Box 4 33.7 × 32.2 × 18 ~5 Large Box (13″×13″×11″)
L Box 5 33.7 × 33.2 × 34.5 ~10 FedEx 10kg Box (40.16 × 32.86 × 25.88)
XL Box 6 41.7 × 35.9 × 36.9 ~15 FedEx Large (16″×16″×16″)
XXL Box 7 / 8 48.1 × 40.4 × 38.9 or 54.1 × 44.4 × 40.9 ~20–25 FedEx Extra Large (42 × 42 × 47)

11 reviews for Zoom Hydraulic Disc Brake Calipers: HB-100 MTB Bike Disc Brakes Front & Rear Caliper Set for Mountain, Road Bicycle and E-Bike

  1. Avatar of Scott

    Scott

    Easy Upgrade! Well worth it!
    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!

  2. Avatar of Jason owens

    Jason owens

    Simple install and cheap but necessary upgrade for ebikes
    Ordered to replace the very squeaky stock brakes (that I’d tried so hard to make work) on a Jasion X Hunter ebike. These should come standard as it really is almost essential. They installed in 5 minutes each. Took longer to cut the end cap off the old line than it did to install and align the new one. Squeak is gone, rubbing is gone, and stopping power is far greater. I don’t believe there were instructions but really there is no need they are very simple and function exactly like the old mechanical ones

  3. Avatar of Matt

    Matt

    Good upgrade
    These are good breaks and definitely an upgrade from the single piston mechanical calipers that were stock on the bike. I installed them on my Aipas M2 Pro as I put it together. The bike is heavy and many reviews said the brakes were inadequate. The istallation was very staight forward and pretty simple. There are a couple of videos online to assist. I had my initial trial down to the bottom of the New River Gorge. No fade and good stopping power, even at higher speeds. I woould recommend this upgrade to a heavier ebike if it has standard mechanical breaks. Well worth the price and it is something you can tackle yourself with simple skills base.

  4. Avatar of Steve weeeeee White

    Steve weeeeee White

    Great Value and easy to install
    These are great value and easy to install. These hydro mechanical disc breaks are great for replacement of very subpart mechanical disc breaks.They stop well and provide more safe braking than a very bad unsafe set of mechanical brakes.They are quiet on the brake. Easy to install.

  5. Avatar of NJSARN_SoCal

    NJSARN_SoCal

    Easy to install, works well, solid design, and Quality built
    Very easy 1 to 1 replacement in my TT eBike dual motor. Great value for the money. Quality built. Brakes securely and smoothly.

  6. Avatar of KJ

    KJ

    Works fine
    I bought these calipers to upgrade the mechanical disk brakes on my Lectric 2.0 brand e bike. The installation was easy and straight forward. The calipers look nice with the red finish. I dont know if they really do a better job at stopping the bike then the factory brakes. They do stop the bike and I dont have any complaints.

  7. Avatar of T.W.   Georgia

    T.W. Georgia

    Good Looking
    After installation and bedding in the pads, the brakes work well with decent modulation and power. But the hybrid system is quite heavy, much heavier than quality Avid BB7 Mechanical brakes. The red anodizing is very attractive.

  8. Avatar of RJS

    RJS

    Perfect retrofit and upgrade for e-bike mechanical brakes
    Got this set to upgrade / retrofit the mechanical brakes on a Haoqi Black Leopard circa 2022. Installation is easy, and the fit was perfect. Help yourself by having the right tools on hand – brake cable tensioner and cable crimp. With those, fine adjustment of the braking tension is easy. They are smooth and they are quiet. Total install front and back was about an hour.

  9. Avatar of Riccardo Matteucci

    Riccardo Matteucci

    Fantastic! These are 100% better than the manual disc brakes my e-bike came with! Less effort on the squeeze of the brakes and they grab the disc and stop me about 15ft shorter than the old brakes would’ve…..worth the expense!

  10. Avatar of LJM

    LJM

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

  11. Avatar of Colin

    Colin

    Does the job, little bit noisy


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