Zoom HB876 4-Piston Hydraulic Disc Brake Set MTB eBike Front+Rear Pre-Bled For Sale

Upgrade your ride with the Zoom HB876 Hydraulic Disc Brake Set — a complete front and rear brake kit engineered for mountain bikes, eBikes, fat bikes, road bikes, folding bikes, and scooters. Featuring a 4-piston caliper design and pre-bled hydraulic lines, this set delivers powerful, smooth, and quiet stopping performance right out of the box.

• 4-Piston Calipers: Dual-side braking force is evenly distributed, increasing stopping power by up to 30% and extending brake pad life by up to 150% versus 2-piston designs.
• Massive Stopping Power: Hydraulic fluid transmission converts smaller lever input into larger braking force
• Optimized Hose Lengths: Front brake hose is 850mm (33.50 in); rear brake hose is 1450mm (57.09 in) — sized to suit most full-size mountain and eBike frames.
• Quiet & Leak-Free: Integrated hydraulic cylinder design prevents oil leakage. Resin-metal composite brake pads protect your rotors and brake silently under all conditions.
• Pre-Bled & Ready to Install: Hydraulic lines come factory pre-bled — minimal setup required. Includes adjustment screws for fine-tuning caliper clearance and brake feel.
• Construction: Brake levers crafted from high-end aluminum alloy for durability and a feel.
• Versatile Terrain Compatibility: for trail riding, downhill, choppy mountain terrain, snow, beach, and flat road HB876Brake TypeHydraulic Disc Brake SetNumber of Pistons4 (per caliper)Brake Pad MaterialResin-Metal CompositeLever MaterialAluminum AlloyFront Hose Length850mm (33.50 in)Rear Hose Length1450mm (57.09 in)OrientationLeft Front / Right RearColorBlackPre-BledYesCompatible Bike TypesMountain Bike, eBike, Fat Bike, Road Bike, Folding Bike, ScooterFitmentUniversalWhat\'s in the Box
  • 1x Front Hydraulic Disc Brake (Lever + Caliper + 850mm Hose, Pre-Bled)
  • 1x Rear Hydraulic Disc Brake (Lever + Caliper + 1450mm Hose, Pre-Bled)
  Installation Notes

  During installation: align calipers with the disc rotor, adjust the clearance using the brake adjustment screws, and pull the brake lever to confirm full rotor contact and correct braking function.