Shimano Hydraulic Disc Brake set 2-Piston Front + Rear MTB Shimano's BR-MT500 brake set includes the BL-MT501 brake lever and BR-MT500 2-piston caliper. The BL-MT501 brake lever delivers high-powered mountain biking Servo Wave performance and I-spec II compatibility. The Shimano BR-MT500 2-piston caliper features consistent braking performance and reliable stopping power in all conditions. BL-MT501 SHIMANO - Hydraulic Disc Brake Lever - I-SPEC II Clamp Band - SERVO WAVE Action The BL-MT500 brake lever delivers high-powered mountain biking SERVO WAVE performance, and I-spec II compatibility. Sleek and stable Smooth and durable master cylinder design Reliable power and rigid brake design is great for all riding styles from XC to trail SERVOWAVE high-power brake Specifications: Model: BR-MT500 / BL-MT501 Color: Black Default Type: Left for Front and Right for Rear / Left for Rear and Right for Front (Please send me a message) Brake length: 700mm Front and 1400mm Rear Pre-filled with brake oil Weight: ~ 630g Include: Brake Caliper x 2 Brake Lever x 2 Hose x 2 Brake Pad x 2 (Installed) Caliper Bolts x 2 **Depending on the size rotors you are using you may need an additional post mount or is mount adapter to fit these calipers to your application. Please contact us and we can provide them in your order for an additional charge.** If you need Olive insert (for changing the rear hose length), please contact us before placing order SKU: BR-MT520 ***These are OEM Shimano Parts, Brand new, Never Installed on Bike, Never used in any way, just NOT in retail packaging.***