Shimano Resin Disc Brake Pads G05A-RX

Overview

The Shimano G05A-RX are fifth-generation resin brake pads designed for 2-piston mountain bike and road disc brake calipers. Featuring advanced resin friction material with significantly improved wear resistance, these pads deliver low noise and excellent modulation across a broad range of Shimano brake systems.

Key Features

• 5th Generation Resin Material — Latest organic friction compound delivers superior power modulation and responsive braking feel; produces minimal noise during operation
• Low Noise Operation — Advanced resin formulation significantly reduces brake squeal and vibration noise; ideal for riders prioritizing quiet, smooth braking performance
• Excellent Power Modulation — Refined friction material provides precise, predictable braking response across varied inputs and terrain; improves rider control and confidence
• Superior Wear Resistance — 50% better wear resistance compared to G03A pads; 110% better wear resistance compared to G02A pads; extends service life and reduces replacement frequency
• New Friction Material — Latest resin compound represents engineering advancement in durability and performance; delivers extended pad longevity without sacrificing modulation
• 2-Piston Compatibility — Optimized pad shape and thickness for 2-piston brake calipers; ensures proper engagement and balanced braking across both pistons
• Narrow G Pad Shape — Compact design fits standard 2-piston caliper pad slots; delivers consistent contact area and predictable braking response
• No Radiator Fins — Simplified pad design reduces overall weight and drag; adequate heat dissipation for most mountain biking and road cycling applications
• Alloy Back Plate — Lightweight construction reduces overall pad weight; provides adequate thermal insulation and structural support
• Broad Series Compatibility — Works with multiple Shimano mountain bike and road brake lines across current and legacy models

Technical Specifications

• Lining material: Resin (5th generation, organic)
• Back plate material: Alloy
• Pad shape: Narrow type (G)
• Brake type: 2-piston
• Radiator fins: None
• Wear resistance: 50% better than G03A, 110% better than G02A
• Package: 1-pair
• Brake compatibility: BR-M9000, BR-M9020, BR-M987, BR-M985, BR-M8100, BR-M8000, BR-M785, BR-M7100, BR-M7000, BR-M675, BR-M666, BR-M6100, BR-M6000, BR-M615, BR-S7000, BR-S700, BR-CX77, BR-RS785, BR-R785, BR-R517, BR-R317
• Compatible series: XTR M9000, XTR M980, Deore XT M8100, Deore XT M8000, Deore XT M780, SLX M7100, SLX M7000, SLX M670, SLX M660, Deore M6100, Deore M5100, Deore M6000, Deore M610, Alfine S7000/S700, Cyclocross/On-Road Disc Brake

Compatibility & Ideal Use Cases

Compatible with 2-piston Shimano mountain bike and road disc brake calipers across XTR, Deore XT, SLX, Deore, and Alfine series, as well as cyclocross and road disc brakes. Designed for mountain biking, road cycling, and gravel/cyclocross applications, not BMX use. Ideal for trail riders, road cyclists, and cyclocross racers prioritizing low-noise, responsive braking with extended pad longevity. The fifth-generation resin material and significantly improved wear resistance make these pads well-suited for riders seeking maximum value and extended service life. The low noise and excellent modulation suit riders valuing precise control and quiet operation over maximum stopping power. Excellent choice for casual to serious mountain bikers and road cyclists combining smooth braking performance with practical durability. The broad compatibility across current and legacy Shimano brake models makes these pads a reliable replacement option for many riders. Not recommended for extreme downhill or enduro racing where metal pad durability and maximum stopping power are critical.