--- product_id: 483524872 title: "Zoom H876E 2-PIN/3-PIN 4-Pistons E-Bike Electric Power-Off Hydraulic Brake Set with 180mm Rotors, Pre-Bled Hydraulic Disc Brake Caliper Lever for eBike (Included Mounting Adapter)" brand: "coomeng" price: "8459459β‚«" currency: VND in_stock: true reviews_count: 5 category: "Coo Meng" url: https://www.desertcart.vn/products/483524872-zoom-h876e-2-pin-3-pin-4-pistons-e-bike store_origin: VN region: Vietnam --- # 2/3-pin power-off sensor auto cuts motor 4 pistons for 25% stronger braking Pre-bled, ready to install with adapters Zoom H876E 2-PIN/3-PIN 4-Pistons E-Bike Electric Power-Off Hydraulic Brake Set with 180mm Rotors, Pre-Bled Hydraulic Disc Brake Caliper Lever for eBike (Included Mounting Adapter) **Brand:** coomeng **Price:** 8459459β‚« **Availability:** βœ… In Stock ## Summary > πŸš΄β€β™‚οΈ Stop Faster, Ride Smarter β€” The Ultimate E-Bike Brake Upgrade ## Quick Answers - **What is this?** Zoom H876E 2-PIN/3-PIN 4-Pistons E-Bike Electric Power-Off Hydraulic Brake Set with 180mm Rotors, Pre-Bled Hydraulic Disc Brake Caliper Lever for eBike (Included Mounting Adapter) by coomeng - **How much does it cost?** 8459459β‚« with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/483524872-zoom-h876e-2-pin-3-pin-4-pistons-e-bike) ## Best For - coomeng enthusiasts ## Why This Product - Trusted coomeng brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Plug & Play Setup:** Pre-bled hydraulic system with included mounting adapters means zero hassle, zero messβ€”just bolt on and go. - β€’ **Durable 180mm Rotors:** Larger rotors paired with resin pads boost heat dissipation and wear resistance by 150%, perfect for urban and off-road adventures. - β€’ **Unmatched Stopping Power:** 4-piston calipers deliver 25% more braking force than dual-piston sets, ensuring confident control on every ride. - β€’ **Smart Power-Off Integration:** Automatic motor cut-off via 2/3-pin connectors for instant power-down when brakingβ€”ride safer, smarter. - β€’ **Universal Handlebar Compatibility:** 22.2mm lever clamp fits 99% of bike handlebars, combining ergonomic comfort with sleek, compact design. ## Overview The Zoom H876E is a premium 4-piston hydraulic disc brake set designed specifically for e-bikes, featuring 180mm rotors and pre-bled calipers with environmentally friendly mineral oil. It integrates a power-off sensor compatible with 2-pin and 3-pin connectors to automatically cut motor power when braking. With enhanced braking force (+25%) and wear resistance (+150%) over standard dual-piston brakes, plus universal handlebar compatibility and included mounting adapters, this set offers a plug-and-play upgrade for safer, more responsive e-bike riding. ## Description Please confirm the following 2 questions before purchasing: Is the length of the hose sufficient Are the connectors of the power-off wires matched Be sure to confirm it clearly, if you can't confirm it yourself, please leave your question at any time. 4-pistons E-bike hydraulic disc brake set, compared with the same level of double-piston brake set, the braking force is increased by 25%, & the wear resistance is increased by 150%. Whether you are climbing/off-road/jungle/urban leisure riding, it can easily cope with it. The 22.2mm brake handle caliber design is suitable for 99% of the bicycle handlebars on the market. The brake pads are upgraded with resin brake pads, which will not damage the rotors. The normal size makes replacement more worry-free. Brand: ZOOM Name: 4-piston hydraulic disc brake Model: HB876E Power-off waterproof interface Colour:Red/black Material:Aluminum alloy Rotor: 180mm * 2pcs Power-off line connector type: 2-pin The length of rear hose: 1600mm The length of front hose: 900mm Review: This was an extremely satisfyibg upgrade on my sons ebike. Swapping from mechanical to 4 pistons provided some of the most noticeable performance improvement and is just flat out safer for him ... the red levers and calipers match his theme he was going with... i think they look amazing.. this is a no brainer upgrade if your kids have ebikes with mechanical disc brakes.. install took about an hour for everything.. levers have good pull and my sons arms arent pumped after 10 minutes of riding anymore.. we go for longer rides simply because of the new mechanics of the brake upgrade.. extremely satisfied with this purchase . Review: Bought 2 of these for my 2 ebikes. Has these for 2 years. Great stopping power ## Features - Powerful Braking Force: Experience fast braking with 4 pistons in each brake caliper, ensuring powerful braking performance for every ride. It comes pre-bled with environmentally friendly mineral oil, ready for use without the need for bleeding. - Designed for E-bikes: This brake system come with a brake automatic power-off sensor and are compatible with 2-pin/3-pin connectors. When you brake, the power output is automatically cut off, ensuring quick and efficient braking. - Sufficient Hose Length: Ensure hassle-free installation by confirming the required hose length before purchasing. The front brake hose length is 950mm (37.4in), and the rear brake hose length is 1850mm (72.8in). - Larger Rotors and More Durable Pads: Equipped with original 180mm rotors, these brakes offer stronger braking performance compared to 160mm rotors. The set also includes universal pads compatible with various models such as SHIMANO BR-M8120/M7120. - Important Note on Connector and Rewiring: 3-pin connector may require rewiring due to varying power-off methods. If the motor's power supply cannot be cut off, re-wiring may be necessary. Contact our customer service for simple rewiring instructions. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BC78WYVF | | Batteries Included? | No | | Best Sellers Rank | #47,621 in Sporting Goods ( See Top 100 in Sporting Goods ) #187 in Bike Brakes & Parts | | Brand | CooMeng | | Color | Red & 2-PIN Connector | | Customer Reviews | 4.1 4.1 out of 5 stars (294) | | Date First Available | 1 January 2024 | | Item model number | H876E Red with 2-pin connector | | Manufacturer | CooMeng | | Material Type | Resin | | Outer Material | Aluminum alloy | | Package Dimensions | 24.99 x 20.19 x 7.11 cm; 1.29 kg | ## Images ![Zoom H876E 2-PIN/3-PIN 4-Pistons E-Bike Electric Power-Off Hydraulic Brake Set with 180mm Rotors, Pre-Bled Hydraulic Disc Brake Caliper Lever for eBike (Included Mounting Adapter) - Image 1](https://m.media-amazon.com/images/I/713BVJWcKYL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by P***Y on 19 April 2026* This was an extremely satisfyibg upgrade on my sons ebike. Swapping from mechanical to 4 pistons provided some of the most noticeable performance improvement and is just flat out safer for him ... the red levers and calipers match his theme he was going with... i think they look amazing.. this is a no brainer upgrade if your kids have ebikes with mechanical disc brakes.. install took about an hour for everything.. levers have good pull and my sons arms arent pumped after 10 minutes of riding anymore.. we go for longer rides simply because of the new mechanics of the brake upgrade.. extremely satisfied with this purchase . ### ⭐⭐⭐⭐⭐ Review *by X***A on 29 March 2026* Bought 2 of these for my 2 ebikes. Has these for 2 years. Great stopping power ### ⭐⭐⭐⭐⭐ Review *by M***S on 26 March 2025* These brakes were awkward to connect to bike took me about an hour all works well only thing is the electric sensors did not work ## Frequently Bought Together - CooMeng Zoom HB876E 2-PIN/3-PIN 4-Pistons E-Bike Electric Power-Off Hydraulic Brake Set with 180mm Rotors, Pre-Bled Hydraulic Disc Brake Caliper Lever for eBike (Included Mounting Adapter) - Zoom 4-Pistons Replacement Pads Semi-Metallic Brake Pads Compatible with Zoom HB876E, XTR XT Surron SLX Deore Saint - CHUMXINY Brake Bleed Kit for Shimano, TEKTRO, TRP Hydraulic Disc Brakes. Bicycle Hydraulic Brake Bleed Kit Includes Brass Connector, 150ML Mineral Oil Brake Fluid --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/483524872-zoom-h876e-2-pin-3-pin-4-pistons-e-bike](https://www.desertcart.vn/products/483524872-zoom-h876e-2-pin-3-pin-4-pistons-e-bike) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-06-08*