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

$4,799.00 $4,269.00   ? You automatically get Club Price when buying online. But there are extra benefits if you join Club 99.
In stock
Only %1 left

PAYMENT OPTIONS

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Product Limit $30 - $2,000 $30 - $3000 $350 - $1,000 Up to $8,000
Minimum Purchase $30 $50 $350 $1,000
Interest Free Period Always interest free Always interest free Always interest free Up to 12 months interest free*
Set up Fee No sign-up or late fees No sign-up or monthly account fees No set-up fee A one-off establishment fee may apply
Minimum Repayments Four equal interest free payments Four instalments due every 2 weeks $40/month From $40/month or 3% of the outstanding balance (whichever is greater)*
Payment Frequency Fortnightly Fortnightly Weekly, fortnightly and monthly Set your schedule to weekly, fortnightly or monthly
Monthly Account Fee No account fee No account fee $9.95/month (waived if your statement balance is zero) $9.95/month (waived if nothing owing)
Late Fee No late fees Learn more about Afterpay late fees Click here Learn more about Zip Pay late fees Click here Learn more about Zip Pay late fees Click here
More Information More information More information More information More information
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Up to 12 months interest free

Features

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

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 come with a complimentary free tune-up and safety check.

Please note that, in order to reduce production and delivery times, bike specifications are subject to change by the manufacturer without notice. Please be aware that these changes might not be reflected on product pages and images.

The Merida eBig.Nine 400 EQ is a versatile electric hardtail mountain bike designed for both off-road adventures and urban commuting. Featuring a powerful Shimano EP6 motor and a robust 630Wh battery, this bike ensures you can tackle hills and long distances with ease. Its Suntour suspension fork and hydraulic disc brakes provide excellent control and stability, making it suitable for various terrains. With practical accessories like lights, a kickstand, a rack, and mudguards, the eBig.Nine 400 EQ is ready for any journey.

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

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

Free Test Rides

Free Test Rides

Come into your local store to test ride an eBike today - Find a store


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Calculate Your Range

Calculate Bosch battery range here


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Shop Our eBikes

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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.

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.

More Information
SKU Merida25eBIGNINE400EQCoolGreyBlack
Season 2025
Sizing SKUs SM: MEEB2500017, MD: MEEB2500018, LG: MEEB2500019, XL: MEEB2500020
Click & Collect Yes
eBike Drive System Mid Drive
Motor Brand Shimano
Motor/Drive Unit Shimano EP6; 85Nm 25KPH
Battery Shimano EN806; 630Wh
Display Shimano SC-EN500A
Colour Grey
Frame eBIGNINE LITE III MAT aluminium 29x235 without fender max 29x225 with fender max WHS 148x12 AST intube
Frame Material Alloy
Fork Suntour XCM34-Boost LOR DS; 100mm; Tapered; 51mm fork offset; 29x2.4" max WHS
Fork Brand Suntour
Front Travel 100mm
Speeds 1 x 11
Front Gears Single
Groupset Brand Shimano
Rear Gears 11 Speed
Crankset Shimano FC-EM600; 165 mm for all sizes
Pedals VP VPE-537
Chain Shimano LG500
Brake Type Hydraulic Disc Brake
Derailleur Rear Shimano CUES U6000; GS
Wheel Size 29"
Rims MERIDA COMP CC II; 25 IWR; MAT aluminium
Bottom Bracket included
Handlebar 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
Saddle MERIDA EXPERT TK; V-mount
Seatpost MERIDA EXPERT CC; MAT aluminium; 34.9 DSP; 0 SSB

Merida Big Nine Sizing Chart

Rider's Height (cm)
160
165
170
175
180
185
190
195
200
205
210
SM
MD
LG
XL
XXL

Electric Hardtail Mountain Bike Geometry Diagram

Legend

ST Seat Tube

TT Top Tube

CS Chain Stay Length

HTA Head Tube Angle

STA Seat Tube Angle

BD Bottom Bracket Drop

HT Head Tube

FL Fork Length

R Reach

S Stack

WB Wheel Base

Size

SM MD LG XL
Wheel Size 29" 29" 29" 29"
Frame Size SM MD LG XL
ST Seat Tube (mm) 380 430 480 530
TT Top Tube (mm) 588 605 625 645
CS Chain Stay Length (mm) 465 465 465 465
HTA Head Tube Angle (°) 67.5 67.5 67.5 67.5
STA Seat Tube Angle (°) 74.5 74.5 74.5 74.5
HT Head Tube (mm) 115 120 130 140
R Reach (mm) 411 427 445 462
S Stack (mm) 636 640 650 659
WB Wheel Base (mm) 1165 1183 1204 1225

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