Mountain Bike Hydraulic Disc Brakes 4 Piston Caliper Front 785mm Rear 1490mm, Dual Drive Hydraulic Brake Set with All - Metal Pads for Off - Road Cycling

Item Type: Hydraulic Disc Brake SetMaterial: Aluminium AlloyProduct Color: As Pictures Shown Product Size:Front Brake Oil Pipeline: Approx. 785mm / 30.9inRear Brake Oil Pipeline: Approx. 1490mm / 58.7inBrake Caliper A Pillar Size: Approx. 75mm / 3.0in (common for disc brakes)Brake Caliper B Pillar Size: Approx. 51mm / 2.0in (common for disc brakes)Installation Size:Front Brake Caliper: B pillar (side mounted) conversion seat, fits 160mm / 6.3in disc brake rotor when installed in the front brake position, and fits 140mm / 5.5in disc brake rotor when installed in the rear brake positionRear Brake Caliper: B pillar (side mounted) conversion seat, fits 180mm / 7.1in when installed in the front brake position, and fits 160mm / 6.3in disc brake rotor installed in the rear brake positionApplicable Brake Lever Installation Diameter: Standard 22.2mm / 0.87inProduct Weight: Approx. 677g / 23.9ozBrake Type: 4 Piston Hydraulic Disc BrakeBrake Lever Fingers Number: 2 fingersPackage List：1 x Front Hydraulic Disc Brake1 x Rear Hydraulic Disc Brake

• 4-Piston Dual Drive Caliper: This mountain bike hydraulic disc brakes system uses a 4-piston dual drive caliper that clamps both sides of the rotor simultaneously with equal force, delivering more stable, efficient, and powerful braking than standard double-piston brakes while preventing rotor warping and uneven wear during intense off-road rides.
• All-Metal Brake Pads with Copper Fiber: The hydraulic disc brake set includes all-metal brake pads infused with copper fiber for superior heat conduction, high-temperature resistance, and enhanced friction—ideal for muddy or sandy trails where consistent stopping power and reduced noise, dust, and fade are critical.
• Universal Compatibility for Mountain Bikes: Designed for most mountain bikes, this front and rear hydraulic disc brakes kit fits handlebars with a 22.2mm clamp diameter and includes 785mm front and 1490mm rear hoses, making it perfect for trail riders, commuters, and off-road enthusiasts seeking reliable, maintenance-free performance.
• Premium Corrosion-Resistant Build: The caliper body is crafted from upgraded 6061 aluminum alloy with a matte baked-on paint finish, fully sealed corners, and waterproof, dustproof construction—ensuring long-lasting durability and zero maintenance even in harsh weather or rugged terrain conditions.
• Ergonomic Lightweight Brake Lever Design: The single/dual-finger brake lever features a frosted surface with non-slip particles and an integrated oil cylinder for excellent sealing and reduced maintenance needs, offering intuitive control, smooth reach, and responsive braking feel on every downhill or technical section.