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Delivered ready to ride in 10 to 14 days.

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Bike Build

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Next Business Day Delivery


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Delivered before 8pm next business day.

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Delivered boxed in 2 - 4 weeks

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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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Merida Big.Nine 20 29" Hardtail 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.

Merida has designed the Big Nine 20 with emerging riders in mind - their goal was to build a bike that blended reliability, performance and affordability for everyone. You can tell Merida has done an excellent job at investing in areas that have a big impact on the riding feel of the bike such as the hydraulic disc brakes, Shimano mixed gearset, and Suntour XCT30 lockout fork, while they have really 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 from weather and potential "incidents" out on the trails. However, the best aspect of the Merida Big Nine 20 is that you know you're getting amazing performance at a great price!

Shimano Drivetrain

The Big Nine 20 features a Shimano 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 offering the range to smoothly roll along the flats.

Lightweight Frame

The lightweight aluminium frame balances rugged reliability and performance without adding unnecessary weight.

Hydraulic Disc Brakes

Merida has chosen to kit this bike out with hydraulic disc brakes, ensuring that you have confidence in all conditions knowing you've got a reliable braking system that stops whenever you need it.

Questions Answered

What type of riding is the Merida Big.Nine 20 designed for?

Perfect for entry-level trails and getting around the city, the large wheels keep you fast, on or off-road!

What makes the Merida Big.Nine 20 different?

The Suntour XCT30 fork offers 100mm of smooth travel, accompany that with the 2x8 drivetrain and you're left with comfort in climbs and descents even when the terrain gets rough.

Who is the Merida Big.Nine designed for?

If you're in the market for a capable hardtail mountain bike that offers a riding experience that puts a smile on your face, every time, then the Merida Big Nine 20 is for you! it's smooth, reliable, lightweight, and equipped with all the gear you could ever need for hours of endless adventure!

More Information
SKU Merida24Big.Nine20MattDarkSilverSilver
Season 2024
Sizing SKUs MD: MEHA242400936, LG: MEHA242400937, XL: MEHA242400938, XXL: MEHA242400939
Click & Collect Yes
Colour Grey
Frame BIG.NINE TFS IV; MAT aluminum; 29 WHS; 135x9 AST; BSA BBR
Frame Material Alloy
Fork Suntour XCT30 HLO; Coil; 100 STR; lockout; max. 29x2,25" WHS
Fork Brand Suntour
Front Travel 100mm
Speeds 2 x 8
Front Gears Double
Groupset Brand Shimano
Groupset Shimano Mixed
Rear Gears 8 Speed
Crankset Shimano FC-M315-2; 36-22
Pedals VP VPE-891
Chain KMC Z8.3
Brake Type Hydraulic Disc Brake
Brakes Tektro M275 [or Shimano BR-MT200]
Shifters Microshift TS39 [or Shimano ST-EF505]
Brake Levers Tektro M275 [or Shimano BR-MT200]
Derailleur Front Shimano FD-M315-TS
Derailleur Rear Shimano RD-M3020-8; SGS
Cassette Sunrace CSM558AU; 11-32 teeth; 8 speed; Nickel
Wheel Size 29"
Tyres MERIDA K1080; 29x2.2"; wire:MERIDA K1080; 29x2.2"; wire
Rims MERIDA CC; 17 IWR; MAT aluminium
Hubs Shimano TX505; 100x9 WHF; 32 SPH; Centerlock:Shimano TX505; 135x9 WHR; 32 SPH; Centerlock
Spokes Black steel
Bottom Bracket Shimano BB-UN101 73-123
Handlebar MERIDA CC; MAT aluminium; 690 WHB; 15 RHB
Headset MERIDA M2345
Stem MERIDA CC; MAT aluminium; 31.8 DSH; 6 ASD, 70 mm-S, 80 mm-M, 90 mm-L, 100 mm-XL, 110 mm-XXL
Saddle MERIDA Sport comfort
Seatpost MERIDA CC; MAT aluminium; 30.9 DSP; 15 SSB

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 MD LG XL XXL
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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