The Lewis LH4 has earned a reputation as the benchmark in high-performance hydraulic braking—offering unbeatable feel, adjustability, and stopping power in its class. Built from aerospace-grade 7075-T6 aluminum and designed with precision CNC machining, the LH4 delivers smooth modulation and powerful, predictable braking with every pull.
Packed with features like dual dial & bite point adjustment, Kevlar-braided hoses, and stainless steel 4-piston calipers, the LH4 is trusted by aggressive riders who demand consistency and control.
Note: If you are ordering a "Rear" brake - please note that you will likely have to use the included extra brake line and cut to the correct length for your bike and bleed the brakes with new brake fluid.
If you need a bleed kit, please see the Lewis Brake Bleed Kit Here and Mineral Oil Here.
If you are ordering a "Front" brake - you will likely need to shorten the provided amount of brake line, and follow the same procedure of bleeding the system.
Key Features:
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Available in Front and Rear Configuration
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Lightweight design: 597g with hoses, 380g without
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4-piston caliper (2 x 14mm + 2 x 17mm stainless steel pistons)
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Lewis TP-37 brake pads pre-installed
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Easy Bleed Tech and reusable no-bleed olive system
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Kevlar K28 braided hose – 90cm (front) / 165cm (rear)
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CNC 7075-T6 aluminum levers and calipers
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Split clamp design for easy installation and clean cockpit routing
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Ultra-light lever action with excellent modulation and feedback
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Dual adjust: lever reach (dial) + bite point (2mm Allen, tool included)
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Bearing pivots for smooth actuation
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Compatible with 140 / 160 / 180 / 203 / 223mm rotors (adapters not included)
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Mineral oil system
Specifications:
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Oil Type: Mineral Oil
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Hose OD: 5mm (Kevlar braided), Bore: 2.2mm
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Mount: Post Mount
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Bleed Kit Recommended: EZMTB 2022std
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Pad Compatibility: Lewis LP-37 & TP-37
Whether you're building a lightweight race machine or upgrading your trail or eMoto setup, the LH4 delivers premium braking feel without the premium price tag.
Fitment
- Surron LBX
- Talaria Sting MX3
- Talaria Sting R MX4
- Talaria XXX
- E Ride Pro S
- E Ride Pro SS 2.0
- 79Bike Falcon M
