【Dual Piston Disc Brake Caliper】This is a dual-sided disc brake caliper where both pads actuate to provide even and precise clamping force, improving braking performance over single-piston designs, while also preventing rotor deformation. Braking is very smooth in the wettest conditions or the steepest downhill 【High Compatibility】Zoom hb-100 dual-piston line pull bicycle hydraulic disc brakes caliper give you super braking force. Brake levers are made of high-end aluminum alloy, suitable for all mountain bikes, electric bike, scooter, folding bike, fat bike etc 【Caliper Size】Length of rotor: 160mm. Please double-check specifications and size before purchasing to ensure calipers are a perfect fit for your setup 【Quiet Braking】MTB hydraulic bike brakes adopt integrated hydraulic cylinder to prevent oil leakage. The brake pad is made of resin-metal composite pads, which not only not damage rotor, but also not make any noise when braking 【Easy To Install】HB-100 hydraulic disc brake set is easy to install, just getting the brakes properly aligned and the right cable tension Upgrade your ride's stopping power with the Z00M HB-100 Hydraulic Disc Brake Calipers. These high-performance brake calipers deliver consistent, reliable braking force in all weather conditions. The hydraulic system provides smooth modulation and excellent lever feel, giving riders precise control when they need it most. Built with durability in mind, these calipers feature robust construction that stands up to regular use on trails and roads. The design allows for easy installation and maintenance, with straightforward bleeding process and pad replacement. Perfect for both front and rear wheel applications, these brake calipers offer dependable performance for mountain bikes, trail bikes, and other off-road vehicles. The compact form factor ensures compatibility with most frame designs while maintaining optimal clearance for various rotor sizes. Experience confident braking and enhanced riding control with these reliable hydraulic disc brake calipers.