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Delivered ready to ride in 10 to 14 days.

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Select the product you are interested in, click delivery, type in your postcode, and select Bike Delivery. If this is not available there is no available stock nearby.

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Once your order is placed we will be in contact with you within 2 hours to confirm your order.

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Bike Build

Your bike will be built up at your local 99 bikes by one of our expert mechanics and safety checked prior to delivery.

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Your bike is delivered to your door by a 99 Bikes expert who will walk you through your new bike and answer any questions you may have.

Next Business Day Delivery


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Delivered before 8pm next business day.

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All orders placed before midnight will be delivered next business day before 8pm.

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Picked for Delivery

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One of our friendly 99 Delivery team members will deliver your order.

About Box Bike Delivery


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Delivered boxed in 2 - 4 weeks

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Select the product and size you are interested in, click delivery, add your postcode, then select bikes delivered boxed. If this option does not appear, there is no available stock.

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Bike Visually Inspected

Your bike will be visually inspected by our mechanics prior to delivery.

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Bike Sent For Delivery

Your bike will be sent boxed through a courier to your delivery address. Authority to leave must be provided.

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Your bike will be delivered to your delivery address within 2 - 4 weeks

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Get Your Bike Built

We recommend organising your bike to be assembled by a qualified mechanic to ensure safety.

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Merida Big Nine 20 Mountain Bike Matt Dark Silver/Silver

$899.00 $759.00   ? You automatically get Club Price when buying online. But there are extra benefits if you join Club 99.
In stock
Only %1 left


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
Request a Price Beat

Up to 12 months interest free


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 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 Big Nine 20 Mountain Bike is an entry level hardtail designed to give you a lightweight feel and a scope of components that will mean you can enjoy a day out on cross country trails with plenty of confidence, it has an easy to use 2x8 drivetrain with a lockout fork. The Merida features a Shimano Altus drivetrain with 2 chainrings at the front and 8 gears at the rear, providing you with plenty of range for steep climbs and descents while still keeping things affordable. Merida have chosen to kit this bike out with Shimano Hydraulic disc brakes meaning you can have confidence in all conditions knowing you've got a reliable braking system that stops when when you need to. The Merida Big Nine 20 mountain bike features a lightweight aluminium frame with a maximum wheel and tyre clearance for 29 x 2.25" and a 135 x 9mm axle standard. you'll find more natural trails with tree roots and loose rocks quite comfortable with the Suntour XCT30 HLO fork which has 100mm of travel helping you maintain grip in the corners and power through climbs - a huge benefit to this fork is the lockout feature which will have you climbing with maximum efficiency and while still have access the 100mm of suspension on the rocky descents and flats.

Merida have designed the Big Nine 20 29er Mountain bike for 2022 with emerging riders in mind - their goal to build a bike with reliable quality components at affordable price for everyone. They've done an excellent job at investing in areas that have a big impact on the riding feel of the bike such as the brakes, gears, and lockout suspension and Merida have gone the extra mile to give you the latest modern features such as internal cable routing which not only looks great but protects your cables on a bike rack and from potential "incidents" out on the trails. The best aspect of this bike is that you know you're getting something you will notice and actively benefit from with every dollar you've spent. If you're in the market for a great experience riding fire roads or tackling some easier trails - the Merida Big Nine 20 29er will have you covered, it's smooth, reliable, lightweight and is equipped with plenty of modern features keeping it ahead of the rest while still offering a really affordable and honest price point - its a bike ready for hours of endless adventure!


  • Suntour XCT30 HLO Fork - 100mm Travel with Lockout!
  • Smooth 29" wheels
  • Alloy frame with internal cable routing!
  • 2x8 speed Shimano Drivetrain
More Information
SKU 22MeridaBig.Nine20MattDarkSilver/Silver
Season 2022
Sizing SKUs MD: MEHA2247735, LG: MEHA2247746, XL: MEHA2247757, XXL: MEHA2247768
Click & Collect Yes
Colour Grey
Frame Alloy
Frame Material Alloy
Fork Suntour XCT30 HLO; Coil; 100mm suspension travel LOCKOUT
Fork Brand Suntour
Front Travel 100mm
Speeds 2 x 8
Front Gears Double
Groupset Brand Shimano
Groupset Shimano Altus
Rear Gears 8 Speed
Crankset Shimano Altus FC-M315-2 (Length 170mm S | 175mm M-XXL)
Pedals VP VPE-891
Chain Sunrace M84
Brake Type Hydraulic Disc Brake
Brakes POWER DS 100, 2 piston, hydraulic disc
Shifters microSHIFT Mezzo TS39
Brake Levers Shimano Acera ST-EF505
Derailleur Front Shimano Altus FD-M315-TS 2x
Derailleur Rear Shimano Acera RD-M360
Cassette Sunrace CSM558AU 11-32T 8spd - black
Wheel Size 29"
Tyres MERIDA K1080; 29 x 2.2"; wire bead
Rims Merida CC; 17mm inner width, aluminium
Hubs F: Shimano Tourney TX HB-TX505 100x9mm, 32h, centrelock | R: Shimano Tourney TX HB-TX505 135x9mm, 32h, centrelock
Spokes Black steel
Bottom Bracket FSA TH-7420ST-W, Cartridge Bearing
Handlebar Merida CC aluminium; 690mm width 15mm rise
Headset Merida M2345
Grips Merida EC
Stem Merida CC aluminium; 31.8 diameter 6° angle
Saddle Merida Sport Comfort
Seatpost Merida CC aluminium; 30.9mm diameter; 15mm setback
Weight 14.48kg

Merida Big Nine Sizing Chart

Rider's Height (cm)

Hardtail Mountain Bike Geometry Diagram


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


Wheel Size 29" 29" 29" 29"
Frame Size 43cm 47cm 51cm 56cm
ST Seat Tube (mm) 430.0 470.0 510.0 560.0
TT Top Tube (mm) 590.0 610.0 630.0 650.0
CS Chain Stay Length (mm) 440.0 440.0 440.0 440.0
HTA Head Tube Angle (°) 70.0 70.0 70.0 70.0
STA Seat Tube Angle (°) 73.0 73.0 73.0 73.0
HT Head Tube (mm) 115.0 130.0 145.0 160.0
R Reach (mm) 398.0 414.0 429.0 445.0
S Stack (mm) 628.0 642.0 656.0 670.0
WB Wheel Base (mm) 1090.0 1110.0 1131.0 1152.0

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