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

Name: Lewis AE Axial Cylinder 4 Pistons Hydraulic Disc Brake Set | Front and Rear
Brand: Lewis
SKU: LW-BR-AE-BK
Price: 349.00 CAD
Availability: InStock

$349.00 CAD

Sale Sold out

Color: Black

1 7

Lewis

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

$349.00 CAD

Sale Sold out

Shipping calculated at checkout.

Color: Black

Quantity

The AE brake lever features a completely new feel tuning, providing a firmer and more substantial sensation compared to the LH series. It is better suited for riders who prefer a higher feedback force from the brake lever.

The AE brake uses Lewis's latest integrated CNC caliper, offering higher caliper rigidity, longer maintenance intervals, and extended lifespan.

AE brakes are made of aerospace-grade 7075 aluminum, which are cut and formed by CNC high-precision, with high strength and light weight.

Single brake lever weight: 112g; Single caliper weight: 108g

The 14mm + 17mm asymmetric piston design enhances brake linear feel, ensures even brake pad pressure distribution, and balances wear.

Up to four precision bearings make up the pivot point of the brake lever, providing riders with an exceptional braking experience down to the finest details.

Features:

Usage: Enduro, Downhill
One-piece high-precision CNC machined caliper
Lever reach adjustment
High strength split clamp
Pistons: asymmetric 14mm+17mm pistons with TP-37 Brake Pads.
Easy Bleeding Technology.
Kevlar hose K28.
Material: High Precision Machined 7075 Aluminum
Powerful but predictable braking force.
Four precision bearing pivots provide superior lever stability and smooth operation without play

Specifications:

Weight: Single brake lever : 112g; Single caliper: 108g
Brake Pad - Lewis LP-37 & TP-37
Oil Type - Mineral oil
Rotors size - compatible with 160 mm | 180 mm | 203 mm | 220m | 223 mm
Lever Body
- CNC 7075 Aluminum
- Body Finish - Black, Black/Orange
- Clamp Color - Black
- Clamp Type - Split
- Screws - Stainless Steel
- Adjustable lever reach - external dial, tool free
Lever
- Material CNC 7075 Aluminum
- Colors - Black, Orange
- Type - 1 Finger
Caliper
- Material - One-piece CNC 7075 Black, Silver/Orange
- 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, Braided T150 for front brake, T200 for Rear brake

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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Wrong pads? We'll exchange them free. No questions asked. Learn more

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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.

	You're hereAE Axial Cylinder 4 Pistons Hydraulic Disc Brake Set $349	LH4 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
	Current	View →	View →	View →	View →

Complete your install

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