Lewis LH4 Axial Cylinder 4 Pistons Hydraulic Disc Brake Set | Front and Rear

Name: Lewis LH4 Axial Cylinder 4 Pistons Hydraulic Disc Brake Set | Front and Rear
Brand: Lewis
SKU: LW-BR-LH4-SL
Price: 469.00 CAD
Availability: InStock

$469.00 CAD

Sale Sold out

Color: Silver

1 7

Lewis

Lewis LH4 Axial Cylinder 4 Pistons Hydraulic Disc Brake Set | Front and Rear

$469.00 CAD

Sale Sold out

Shipping calculated at checkout.

Color: Silver

Quantity

The Lewis LH4 4-Piston Disc Brakes are precision-crafted, high-end brakes that perform like functional art. In head-to-head tests they deliver more power than most competitors, combining solid initial bite with excellent modulation. Staggered piston sizes and the patented bite-point adjustment give you razor-sharp control without sacrificing raw stopping force. Built for riders who charge hard and need to brake just as hard, the Lewis LH4 are at home on enduro rigs, downhill bikes, e-MTBs, and even e-motos.

Each set comes fully sealed and ready to ride, using custom LP/TP-37 brake pads and a new K28 Kevlar-braided hoses (165cm rear, 90cm front). Experience next-level braking with the Lewis LH4.

Features:

Usage: Enduro, Downhill, All-Mountain
Patented 2 in 1 dual adjustment for Lever reach & Bite point.
Front+Rear Brakes weight = 552g (hoses included), 380g (without hoses).
Pistons: 14mm+17mm 4 Stainless steel pistons with TP-37 Brake Pads.
Upgraded hinged clamps.
Easy Bleeding Technology.
Kevlar hose K28.
Material: High Precision Machined 7075 T6 Aluminum
Powerful but predictable braking force.
Ultra light lever action, Great Modulation
Bearing pivots provide superior modulation and feel.

Specifications:

Weight: complete front and rear set - 552g
Brake Pad - Lewis LP-37 & TP-37
Oil Type - Mineral oil
Rotors size - compatible with 140 mm | 160 mm | 180 mm | 203 mm | 220m | 223 mm
Lever Body
- CNC 7075-T6 Aluminum
- Body Finish - Black, Silver, Nebula, Camp
- Clamp Color - Black, Silver
- Clamp Type - Hinged
- Screws - Stainless Steel
- Adjustable lever reach - external dial, tool free
- Adjustable bite point - with 2mm Allen key (special tool provided)
Lever
- Material CNC 7075-T6 Aluminum
- Colors - Black, Silver, Nebula, Camo
- Type - 1 or 2 Fingers
Caliper
- Material - CNC 7075T6 Black, Silver, Nebula, Camo
- Post mount
- Pistons - 2x14mm + 2x17mm Stainless Steel pistons
- Bolts - Stainless Steel
Hose
- Outside Diameter 5mm，Bore 2.2mm
- Hose length: 90cm front / 165 cm rear
- Hose - Black Kevlar, Braided

Install difficulty & what you'll need

Recommended: Bike shop install, or experienced DIYer who's bled hydraulic brakes before. Plan a few hours for both ends.

What you'll need: A bleed kit (we sell the Lewis one), torque wrench, fresh mineral oil, isopropyl alcohol, clean rags. Frame may need new caliper adapters depending on your mount type.

If you've never bled brakes, ask your shop. This isn't the place to learn on $700+ brakes.

What's in the box

Front and rear caliper (pre-bled), matching lever and reservoir, pre-cut hydraulic hoses, mounting hardware, and pad retaining bolts.

Pads come pre-installed: TP-37 sintered on most sets (LHT uses TP-40, AX uses EP-44). Rotors and frame adapters sold separately.

Running Hope brakes? TP-37 is the compound equivalent of Hope E4. TP-40 is the equivalent of Hope V4. The Lewis calipers physically fit Hope pads too if you've already got a stash.

Will these fit my bike?

These are post mount calipers. Check what mount your frame uses (IS or PM). If you're not sure, send us a photo of your current caliper at hello@loamgoat.com and we'll confirm.

Compatible rotor sizes: 180mm to 223mm. We carry matching Lewis Heavy Duty Rotors.

Warranty & returns

3-year warranty on manufacturing defects. Crashes aren't covered, but we stock spare parts and lever assemblies so you can repair without replacing the set.

60-Day Happiness Guarantee: unused, un-installed sets can be returned within 60 days for a full refund. Once you've bled them, they're yours — but our 3-year warranty has you covered for any manufacturing defects.

Shipping info

Free tracked express within Canada (2-7 business days, ships from BC).

Most orders go out same-day if placed before noon PT. Brake sets always ship tracked given the value.

Canada only for now.

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What reviewers say

“The machining is beautiful... no unnecessary tool marks anywhere, and the way parts fit with each other is inspiring.”
NSMB · LHP+ Long-term Review · Oct 2025

“The Lewis LHT Ultimates are no joke. After conducting a proper pad brake-in, I had full confidence in the LHT Ultimate brakes.”
Pinkbike · LHT Ultimate Review · Feb 2024

How this compares

Lewis brake sets at a glance. Your selection is highlighted.

	AE Axial Cylinder 4 Pistons Hydraulic Disc Brake Set $349	You're hereLH4 Axial Cylinder 4 Pistons Hydraulic Disc Brake Set $469	LHP+ U4 4-Piston Hydraulic Disc Brake Set $674	LHT Ultimate 4-Piston Disc Brakes (Front + Rear) $739	AX 4-Piston Disc Brake Set $810
Best for	Enduro/DH, firm lever feel	All-mountain, progressive feel	Enduro/DH, heat management	Premium DH, Ti hardware + Ti pistons	DH, e-MTB, racing
Pistons	2 × 14mm + 2 × 17mm	2 × 14mm + 2 × 17mm	4 × 17mm	4 × 17mm Ti+Ceramic	2 × 18mm + 2 × 20mm
Weight (set)	550g	552g	648g	546g	800g
Cooling fins	—	—	✓	—	✓
Bite point adj.	—	✓	✓	✓	✓
Pads	TP-37 (≡ Hope E4), LP-37	TP-37 (≡ Hope E4), LP-37	TP-37 (≡ Hope E4), LP-37, Hope V4	TP-40 (≡ Hope V4), LP-40	EP-44, VP-40
	View →	Current	View →	View →	View →

Complete your install

Riders who picked up these brakes typically need these too.

Lewis HEAVY DUTY Disc Brake Rotor 2.3mm Thick - Loam Goat

$469.00

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Lewis LH4 Axial Cylinder 4 Pistons Hydraulic Disc Brake Set | Front and Rear