Bucklos Zoom Hb-100 Mtb Line Pulling Hydraulic Disc Brake Calipers, Fat Bike? Product Features ?Super stoping power?This zoom hb-100 dual-piston line pull bicycle hydrauclic disc brakes caliper give you super braking force, ideal for MTB mountain bikes, E-Bike, electric scooter, road bikes ,folding bikes etc ?Quiet braking?hydraulic brakes for mountain bike are made of high-quality resin + copper fiber + steel back plate material, not only no squeaking from the brakes rubbing but also high temperature resistance, moisture resistance, durability, stability ?Adjust Tightness?Bike disc brake sets has elastic fine adjustment screw help you fine-tuning the inner brake line to achieve an ideal brake feel Compatible Rotor Size?hydraulic disc brakes compatible with160mm rotors . Please do NOT remove the yellow pad before installation, and pinch the brake lever, otherwise it will cause oil leakage or scrap the oil disc ?Brake upgrade?Are you struggling with how to update your mechanical brake?Bucklos hydraulic brake calipers is the best choice for you Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!