$800 Off Full Price Clearance

Merida eBig.Nine 400 EQ Electric Hardtail Mountain Bike 630Wh Battery Cool Grey/Black

Brand: Merida

SKU: Select a size

Other Year Models

2025

Merida eBig.Nine 400 EQ Electric Hardtail Mountain Bike Silk Dove Blue/Blue

2026

Size: Select a size

SM MD LG XL

Not sure what sized bike is best?

Answer a few short questions and we'll make a recommendation on which size is best for you.

$3,999.00 Full price

$3,999.00

Club price

$4,799.00 Full price

REQUEST A PRICE BEAT

Pick up Delivery

Your store:

No location set

No click & collect information available for this location.

Click & Collect:

In Store

Select a size to view stock availability at this store.

$9.90 Not available

Express Shipping $19.00

Select a size to view stock availability at this location.

Off-Road Hills & Heavy Loads / 85 Nm Torque

Up to 73 km Range

Shimano STePS EP6 Motor

Alloy Frame/ Suntour Fork

100mm Front Travel

630Wh Battery

Have a Question? Ask an expert on 1800 990 523

Product Details

Description

The Merida eBig.Nine 400 EQ is a versatile electric hardtail mountain bike ideal for both off-road adventures and urban commuting. It features a powerful Shimano EP6 motor and a robust 630Wh battery, allowing you to tackle hills and long distances with ease. The bike is equipped with a Suntour suspension fork and hydraulic disc brakes, providing excellent control and stability on various terrains. Practical accessories such as lights, a kickstand, a rack, and mudguards make the eBig.Nine 400 EQ ready for any journey.

Key Features

Shimano EP6 mid-drive motor with 85Nm torque
Integrated 630Wh battery for extended range
Suntour 100mm suspension fork for comfort
1x10 Shimano CUES drivetrain for versatility
Comes with lights, kickstand, and mudguards

Specifications

Product Overview

Product

Merida eBig.Nine 400 EQ Electric Hardtail Mountain Bike 630Wh Battery Cool Grey/Black

Brand

Merida

Parent SKU

Merida25eBIGNINE400EQCoolGreyBlack

SKU

Merida25eBIGNINE400EQCoolGreyBlack

Size SKUs

SM: MEEB2500017
MD: MEEB2500018
LG: MEEB2500019
XL: MEEB2500020

Matrix Barcodes

SM: 25000170017
MD: 25000180018
LG: 25000190019
XL: 25000200020

Year Model

2025

Product Features

Frame Material

Alloy

Frame Style

Crossbar

Colour

Grey

Wheel Size

29"

Brake Type

Hydraulic Disc Brake

Gears

1 x 11

Front Travel

100mm

Motor and Battery System

Drive Type

Mid Drive

Motor Brand

Shimano

Motor

Shimano EP6; 85Nm 25KPH

Torque (Nm)

Motor Climbing Ability

Off-Road Hills & Heavy Loads

Battery Size (Watt-Hours)

630

Battery

Shimano EN806; 630Wh

Max. Range (KMs)

Display

Shimano SC-EN500A

Declared Article Number (NSW)

ULL-104164-EA

Build

Frame

eBIGNINE LITE III MAT aluminium 29x235 without fender max 29x225 with fender max WHS 148x12 AST intube

Fork

Suntour XCM34-Boost LOR DS; 100mm; Tapered; 51mm fork offset; 29x2.4" max WHS

Handlebars

MERIDA EXPERT CC; MAT aluminium; 720 WHB; 10 RHB

Headset

MERIDA-8155 (for the steerer 1-1/8"~1.5")

Grips

MERIDA EXPERT TK

Stem

MERIDA EXPERT CT; MAT aluminium; 31.8 DSH; adjustable

Bottom Bracket

included

Pedals

VP VPE-537

Saddle

MERIDA EXPERT TK; V-mount

Seat Post

MERIDA EXPERT CC; MAT aluminium; 34.9 DSP; 0 SSB

Seat Clamp

MERIDA EXPERT

Wheels

Wheel Size

29"

Rims

MERIDA COMP CC II; 25 IWR; MAT aluminium

Tyres

KENDA Booster; 29x2.2"; wire

Groupset

Crankset

Shimano FC-EM600; 165 mm for all sizes

Chain

Shimano LG500

Front Rotor

Shimano RT30; 180 mm

Rear Rotor

Shimano RTEM300; 180 mm

Rear Derailleur

Shimano CUES U6000; GS

Cassette

11 Speed

Frequently Asked Questions

What is the Merida eBig.Nine 400 EQ used for?

The Merida eBig.Nine 400 EQ is great for off-road riding as well as urban commutes on varied terrain. This is thanks to its combination of 100mm suspension to absorb the bumps, Shimano EP6 motor to power up hills, and standard inclusions of lights, kickstand, mudguards, and rack to make it a practical commuter.

Why choose the Merida eBig.Nine 400 EQ?

The Merida eBig.Nine 400 EQ stands out due to its powerful motor and integrated battery, providing excellent performance for both commuting and off-road adventures. Its practical accessories enhance usability, making it a versatile choice for various riding needs.

Who is the Merida eBig.Nine 400 EQ designed for?

The Merida eBig.Nine 400 EQ is designed for riders looking for a comfortable upright position when commuting or heading off-road. The Shimano 1x10 drivetrain provides a wide gearing range for those looking to ride faster on bike paths and roads.

Disclaimer

Please Note: Before using this vehicle, check the applicable local laws relating to your intended use of the vehicle on roads and road related areas. Please ride responsibly and follow your local laws. We do not recommend modifying your electric bike or electric scooter.

Find Your Size

Step 1: Measure your height

Take off your shoes
Stand with your back straight against a wall
Balance a book on your head to mark your height on the wall
Measure your height by the distance from the floor to the mark

Your height:

Find Your Size

Step 2: Adjust your inseam

Based on your height, we’ve calculated a starting point.
You can measure your inseam by tucking a book between your legs so there is pressure but it isn’t uncomfortable.
Inseam typically falls with 5cm of the average.

Your inseam:

Find Your Size

Your results

For the Merida eBig.Nine 400 EQ Electric Hardtail Mountain Bike 630Wh Battery Cool Grey/Black we suggest the following size.

More playful More stable

Height: --

Inseam: --

Adjusted Height: --

Find Your Size

We have saved your measurements.

Recommended sizes will now be highlighted on the page.

PERFECT RIDE GUARANTEE

If you don't love it, you can swap it, up to 30 days from purchase!* Learn more »

FREE BIKE BUILD

We'll build your bike for free when you click and collect at any 99 Bikes store.

FIRST FREE TUNE-UP

Every bike comes with a complimentary free tune-up and safety check. Learn more »

Range

Calculate your range

E-Bike Range Estimator

Free Test Rides

Come into your local store to test ride an E-Bike today

Find a store

Shop Our E-bikes

Shop our collection of electric bikes

Shop Now

Powerful Motor Performance

The Shimano EP6 mid-drive motor delivers an impressive 85Nm of torque, making steep climbs and challenging trails manageable. This power boost enhances your riding experience, allowing you to explore further and tackle diverse terrains.

Comfortable Ride with Suspension

Equipped with a 100mm Suntour suspension fork, the eBig.Nine 400 EQ absorbs bumps and rough surfaces effortlessly. This feature ensures a smooth and comfortable ride, whether you're navigating city streets or venturing off the beaten path.

Complete Commuter Package

The EQ version comes fully equipped with essential accessories like lights, a kickstand, and mudguards. This thoughtful design makes it an ideal choice for daily commuting, ensuring you have everything you need for a practical and enjoyable ride.

Not sure what sized bike is best?

Answer a few short questions and we'll make a recommendation on which size is best for you.

Your selected size: -

Legend

Available size

Current size

Unavailable size

Suggested sizing

Merida eBig.Nine 400 EQ Electric Hardtail Mountain Bike 630Wh Battery Cool Grey/Black geometry diagram

Legend

ST Seat Tube
STA Seat Tube Angle
R Reach
TT Top Tube
BD Bottom Bracket Drop
S Stack
CS Chain Stay Length
HT Head Tube
WB Wheel Base
HTA Head Tube Angle
FL Fork Length

Wheel Size

29"

Stack

636

640

650

659

Reach

411

427

445

462

Top Tube Length

588

605

625

645

Seat Tube Length

380

430

480

530

Seat Tube Angle

75.0

74.5

Fork Length

527

Head Tube Length

115

120

130

140

Head Tube Angle

67.5

Handlebar Height

Bottom Bracket Drop

Chainstay Length

Wheelbase

Standover Height

719

750

794

835

Minimum Seat Height

Maximum Seat Height

Reviews

Improve a product