The Shimano ST-RX610 Shift/Brake Lever with BR-RX400 Rear Disc Brake offers unmatched comfort and control for mixed-terrain riding and racing. Designed specifically for gravel, this 12-speed hydraulic/mechanical system ensures light and responsive shifting. The textured hood and anti-slip brake lever surface provide increased control on bumpy terrain, making it an ideal choice for riders seeking reliability and performance.