Enhanced Shimano Deore Hydraulic Disc Brake Bundle: 4-Piston Front & Rear with Lever Set Superior Stopping Power for Mountain Biking and Trail Riding Upgrade your mountain bike with the high-performance Shimano Deore BL-M4100/BR-MT420 Hydraulic Disc Brake Bundle, featuring both front and rear 4-piston calipers paired with precision-engineered levers for optimal braking control. Designed with advanced materials and innovative technology, this brake set delivers exceptional modulation, consistent power, and reliable stopping performance in demanding conditionsperfect for aggressive trail riding, downhill descents, and alpine adventures. Key Features & Benefits: – **Powerful 4-Piston Calipers:** Engineered with durable aluminum pistons and a sturdy post-mount design, these brakes provide superior braking strength and modulation, ensuring confident downhill control and precise stoppingthe ideal choice for mountain bikers seeking high-caliber performance. – **Hydraulic Braking System:** Utilizing mineral oil hydraulic fluid, the Shimano Deore BL-M4100 levers deliver quick, intuitive brake engagement with a shorter free stroke, reducing fatigue during extended rides and enhancing responsiveness. – **Optimized Lever Design:** The BL-M4100 levers feature increased contact point support and a 10-degree rotation adjustment (sold separately), enabling superior rider tuning and customization for a personalized fit and maximum control. – **Enhanced Stopping Power:** The 4-piston calipers combined with resin pad compounds provide consistent braking performance across all conditions, from wet and muddy trails to dry rocky paths, maintaining reliable modulation and control. – **Pre-Bled & Easy Installation:** The brakes come pre-bled for hassle-free setup, saving time and ensuring optimal fluid flow and performance right out of the box. – **Versatile Use:** Front (left) and rear (right) calipers are tailored for mountain biking applications, with compatible hose lengths (1000mm for front, 1700mm for rear) to suit various frame geometries. – **Component Compatibility & Style:** Sleek black finish complements any bike aesthetic, while the post-mount caliper design ensures wide compatibility with various disc rotor sizes (sold separately). This bundle is expertly designed for riders who demand high-level engineering, materials, and performance from their braking system. Whether tackling steep descents, technical climbs, or rugged terrain, the Shimano Deore hydraulic disc brake set guarantees reliable, powerful, and precise stopping performance. Elevate your mountain biking experience with this durable, high-performance brake bundleyour ultimate upgrade for control and safety on every ride.