Lewis GS18-20 Heavy-Duty Hydraulic Disc Brake
Lewis GS18-20 Heavy-Duty Hydraulic Disc Brake
Specially engineered for electric motorcycles and high-power electric mountain bikes, Lewis GS18-20 breaks the performance limits of conventional braking systems. Centered on powerful braking, outstanding heat resistance, universal compatibility and exquisite craftsmanship, it thoroughly solves safety hazards under heavy-load riding scenarios.
1. Heavy-load Braking Performance, Swift Response
Adopting asymmetric 4-piston structure equipped with 2×18mm plus 2×20mm oversized pistons, it enlarges braking contact area remarkably. Strong clamping force delivers instant stopping effect, offering stable speed control even during high-speed downhill rides. Matched with 11mm large axial master cylinder, hydraulic oil delivery capacity is far superior to ordinary brakes. The lever maintains solid touch without spongy feeling, realizing precise and immediate braking output.
2. Superior Heat Fade Resistance, Stable Extreme Performance
Comprehensive upgraded heat dissipation design copes with high temperature caused by frequent braking. It supports 2.3mm-2.8mm thick brake rotors to absorb massive heat and avoid disc deformation. Ceramic thermal isolation on pistons prevents hydraulic oil boiling. Built-in aluminum cooling fins further accelerate heat dissipation, keeping braking performance steady under long-duration intense braking.
3. Premium Machining, Balance Strength & Light Weight
High-precision cut aluminum alloy construction ensures structural rigidity and effectively controls overall weight. Precision bearing design at lever pivot reduces friction resistance, bringing smooth and gap-free operating experience while securing braking stability and riding flexibility.
4. Optimized Hydraulic Hose, Zero Pressure Loss
High-strength Kevlar braided hose avoids tube expansion, ensuring complete hydraulic pressure transmission. Pre-assembled design fits internal wiring perfectly, achieving neat layout and convenient installation.
Composite Structure & Material Property
- Inner Layer: Oil resistant rubber & fluoroplastic, excellent sealing and corrosion resistance
- Reinforced Layer: Kevlar fiber, 5 times tensile strength of steel, stable from -196°C to 250°C
- Outer Protective Layer: Wear-resistant polymer, anti-aging and ultraviolet protection
Performance Comparison
| Performance Index | Kevlar Braided Hose | Traditional Steel Hose | Core Advantage |
|---|---|---|---|
| Tensile Strength | Ultra High ≥3500MPa | Medium High | Lighter weight with equal strength |
| Overall Weight | Ultra Light | Heavy | 40%-60% weight reduction |
| Working Temperature | -70°C ~ 250°C | -40°C ~ 120°C | Strong temperature adaptability |
| Fatigue Resistance | Excellent Durability | Ordinary | Prolonged service lifespan |
| Flame Retardancy | Self-extinguishing | Non flame-resistant | Higher riding safety |
5. Custom Matching Parts, Enhanced Durability
Equipped with exclusive EP-44 sintered metal brake pads, it bears heavy torque and high heat efficiently with superior wear resistance. Custom formulated mineral hydraulic oil maintains stable property amid temperature fluctuation, minimizing system failure risk for reliable long-distance riding braking.
6. Humanized Innovative Design, Leading Industry Standard
Adjustable lever reach adapts different hand sizes. Four-bearing stable pivot structure eliminates loose clearance. The integrated design upgrades operating comfort and overall braking safety comprehensively.
Product Overview
Lewis GS18-20 stands as a benchmark braking system for heavy-duty electric vehicles. Merging powerful braking force, exceptional heat fading resistance, lightweight premium material and practical ergonomic design, it fully matches the usage demands of electric motorcycles and high-power e-MTB. It delivers steady, powerful and precise braking guarantee for both extreme downhill and daily heavy-load travel.
