Description: Tektro Hydraulic Brakes deliver powerful, smooth, and reliable braking with 4-piston calipers and a power-off brake lever for enhanced safety on e-bikes. Feature: Front Hydraulic Brake System: Left Brake Lever with motor inhibitors Front Brake line Front Brake Caliper Rear Hydraulic Brake System: Right Brake Lever with motor inhibitors Rear Brake Line Rear Brake Caliper Applicable model: Jumper Go, EX Titan, Ttekker, Verve. * We do not accept returns or refunds for non-quality-related issues after purchase.