SRAM Maven Ultimate B1 Disc Brake - Rear

SRAM

The SRAM Maven Ultimate B1 Disc Brake is a high-power hydraulic MTB brake system designed for consistent control, low fatigue, and precise tuning across demanding terrain. It delivers strong baseline braking force, supported by a re-designed SwingLink architecture that smooths power delivery and improves modulation under load. A stiff 4-piston caliper with large 18mm phenolic pistons manages heat effectively, keeping braking stable on long descents. Premium details such as a carbon lever blade, titanium hardware, and tool-free adjustments complete a system built for high-performance riding.Key Features and Benefits:Re-designed SwingLink architecture: This updated linkage system refines how force is transferred from the lever to the caliper. It smooths the initial bite and builds power in a controlled way, which improves modulation and reduces hand fatigue. The outcome is more accurate braking input and less strain over long descents.18mm phenolic pistons: Larger piston size increases hydraulic force at the caliper while the phenolic material resists heat transfer. This keeps braking power strong and consistent even under repeated heavy use, resulting in reliable stopping performance from start to finish.Stiff 4-piston caliper construction: The rigid caliper body reduces flex under load, ensuring even pressure across both brake pads. This improves braking efficiency and pad contact, leading to stable and predictable braking with less variation.Advanced heat management design: The combination of piston material and caliper structure helps control heat build-up during extended braking. This reduces the risk of fade and maintains consistent lever feel, so braking performance remains steady on long, steep trails.Tool-free Reach and Contact Point Adjustment These adjustments allow you to fine-tune lever position and bite point without tools. This gives precise control over lever feel and engagement, resulting in a setup that matches your riding style and improves overall braking confidence.Carbon lever blade with titanium hardware: Lightweight materials reduce overall system weight while maintaining strength and stiffness. This improves lever response and durability, resulting in a more responsive feel with reduced long-term wear.Mineral oil hydraulic system: The system uses mineral oil for consistent performance and low maintenance requirements. This reduces the need for frequent servicing while maintaining smooth and reliable braking over time.Stealth lever architecture: The streamlined lever design integrates cleanly with modern cockpits and reduces clutter. This improves ergonomics and control at the bar, resulting in a cleaner setup with better hand positioning.Consistent braking control under high load is critical when riding technical terrain at speed. The Maven Ultimate B1 focuses on maintaining stable power output and predictable lever response, even as heat builds and conditions change. The combination of high baseline power, refined modulation, and effective heat management ensures braking remains controlled and repeatable. Tool-free adjustments and tunable setup options allow you to match braking feel to your preferences without compromise.This brake system provides the control, consistency, and adjustment range needed for demanding riding. It is built to handle high loads while maintaining precision at the lever. Choose it when you need braking performance that stays reliable across every section of the trail.Specifications:Application: MTBBrake type: HydraulicBlade material: CarbonColour: Clear anodisedRecommended MMX clamp: MMX clamp (black, stainless)Orientation: Front, RearPad type: Steel-backed organicBracket type: Direct mount (DIR)Hose lengths: 2000mm, 950mmPistons: 4Piston material: Phenolic plasticRecommended rotor type: HS2Clamp included: Yes - MMX clampDisc Rotor NOT included