Bikes up to 60% offWe monitor over 40,000 bikes daily to find the best prices

Today’s Deals

2025 Merida

BIG.NINE 20

A 29″ aluminum frame hardtail crosscountry bike with mid-range components.

Manufacturer Price

A$949($679)
FrameAluminum
SuspensionHardtail, 100mm
ForkSuntour XCT
Wheels29″ Aluminum
Drivetrain1 × 8
GroupsetEssa
BrakesTektro Hydraulic Disc
View on merida-bikes.comLearn about Merida
Where to Buy
Similar Bikes
Top Comparison
Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
BIG.NINE 20
Other Crosscountry bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

25 mph

BIG.NINE 20

27 mph

Similar Bikes

Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Sizing
MD

5'4" – 5'10"

LG

5'8" – 6'3"

XL

6'0" – 6'6"

🐐 Estimated

Rider Fit Notes
  • 5'4", size MD, Fits large
  • 6'2", size XXL, Just right
Reviews
Bikerumor
Affordable Merida Dirt, Big.Nine & Big.Seven Alloy Hardtails Go From Pumptrack to Trails

Aug 2025 · Cory Benson

We cover a lot of high-end, really expensive mountain bikes, but three updated Merida hardtail offerings for MY2026 show that you can get a fun…

Read Review

Geometry
Specs
Build
Frame

BIG.NINE TFS IV, material: aluminum, 29x2.25" max. wheelsize, 135x9mm axle standard, BSA bottom bracket standard

BB StandardBSA, 73mm, Threaded

Fork

Suntour XCT30 HLO, Coil, 100mm suspension travel, lockout, 29x2,25" max. wheelsize

Travel100mm

Spring TypeCoil

Bottom Bracket

BSA, 73mm, threaded

Headset

MERIDA M2345

Handlebar

MERIDA CC, material: aluminium, 690mm width, 15mm rise

Saddle

MERIDA Sport comfort

Seatpost

MERIDA CC, 30.9mm diameter, 15mm setback, material: aluminium

TypeRigid

Pedals

VP VPE-891

Groupset
Rear Derailleur

Shimano ESSA RD-U2000-8, GS

Crank

Shimano ESSA FC-U2001 32 teeth, MAT Aluminium, 170 mm (S), 175 mm-M up

Shifters

Shimano ESSA SL-315-8R

Cassette

Shimano CS-HG400-8, 11-45 teeth, 8 speed

Chain

KMC Z8.3

Brakes

Tektro HD-M275, hydraulic brake

TypeTektro Hydraulic Disc

Wheels
Rims

MERIDA CC, 17mm inner width, material: aluminium

Spokes

Black steel

Front Hub

Shimano TX505, 100x9mm width front hub, 32 spoke holes, Centerlock

Rear Hub

Shimano TX505, 135x9mm width rear hub, 32 spoke holes, Centerlock

Tires

MERIDA K1080, 29x2.2", wire

Disc Rotors

Shimano RT10, 160 mm

Rider Notes
Riders Also Viewed

First added July 9

Last updated April 18

Not listed for 41 days