Merida Big Nine 80 Mountain Bike 2026 - Hardtail MTB

A modern hardtail with updated geometry, a RockShox Judy Gold 120 mm fork and fast-rolling 29" wheels. Shimano’s 1x9 drivetrain and hydraulic discs make it a reliable choice for riders exploring off-road routes with comfort and control.
Key Features:
- 6061 aluminium TFS frame with modern, capable geometry
- RockShox Judy Gold air fork, 120 mm travel with lockout
- Hardtail design for efficiency and low weight
- Shimano CUES U4000 1x9 drivetrain
- Shimano MT200 hydraulic disc brakes
- 29" Merida Comp rims with Kenda Booster 2.4" tyres
- Internal routing and dropper-ready frame
- Available with 0% APR finance
The Merida Big Nine 80 is built for riders wanting a confident start in mountain biking, with the durability to grow as your skills do. Merida has spent decades refining aluminium hardtails, and this latest TFS frame shows that experience. It uses double-butted, technoformed 6061 aluminium to reduce weight without losing strength. The internal cable routing keeps things tidy, while the tapered head tube allows future fork upgrades. Mudguard and kickstand mounts add everyday versatility, and the frame accommodates tyres up to 29x2.4" for grip and comfort.
The updated geometry follows modern trail trends: a longer reach, shorter stem and slacker head angle for better control on technical terrain, balanced by a steeper seat angle to keep you efficient on climbs. The Big Nine suits taller riders, while shorter riders can opt for the Big Seven. Those in between can choose based on riding style—29" wheels for speed and stability, 27.5" for agility.
A RockShox Judy Gold air fork with 120 mm travel smooths out roots, rocks and rough ground. The air spring makes it tuneable for rider weight, and the lockout helps you firm things up on the climbs or smoother paths.
Shimano’s CUES U4000 1x9 drivetrain is simple and reliable, offering a wide 11–46 cassette range for steady climbing and easy cruising. Paired with the 32T chainring, it’s a setup built for predictable shifting and low maintenance.
Shimano MT200 hydraulic brakes with 160 mm rotors bring confident stopping power in all conditions. Merida Comp CC II rims use a 25 mm internal width to support the Kenda Booster 29 x 2.4" tyres, which offer fast-rolling performance with enough bite for loose or mixed surfaces.
Finished with Merida’s own aluminium cockpit, an in-line seatpost and a comfortable Comp SL saddle, the Big Nine 80 is ready for trail centres, forest loops and off-road exploring. It’s a durable hardtail designed to give you a solid, enjoyable start on the mountain bike journey ahead.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | TFS V - 6061 aluminium, double butted and technoformed. Tapered head tube. Chain stay mounted disc brake. Internal cable routing. Mudguard and kick stand mounts. BSA threaded BB. 135mm x 9mm axle. Max. tyre size 29" x 2.4" |
| Fork | RockShox Judy GOLD; Air; 120 mm travel Lockout; 46mm fork offset |
| Headset | FSA NO.55R/57SC/57B |
| Stem | Merida Comp CC; material: aluminium; 31.8 mm diameter; 7 degree rise |
| Bars | Merida CC; material: aluminium; 15mm rise; S - 720mm wide, (M-XXL) - 750mm wide |
| Front Brake | Shimano MT200; hydraulic brake with Shimano RT10; 160 mm |
| Rear Brake | Shimano MT200; hydraulic brake with Shimano RT10; 160 mm |
| Rear Mech | Shimano Cues U4000; GS |
| Shifters | Rear: Shimano Cues U4000 |
| Speed | 9 |
| Rims | Merida Comp CC II; 25mm inner rim width; material: aluminium; tubeless ready |
| Front Hub | Shimano QC300; 100x9mm; 32 Spoke; Centerlock |
| Rear Hub | Shimano QC300-HM; 135x9mm; 32 Spoke; Centerlock |
| Spokes | Black steel |
| Front Tyre | Kenda Booster; 29x2.4" |
| Rear Tyre | Kenda Booster; 29x2.4" |
| Seat Post | Merida Comp CC; material: aluminium; 30.9mm diameter; in-line |
| Saddle | Merida Comp SL; V-mount |
| Chainset | Shimano Cues UT400-1; 32 tooth chainset; material: aluminium ; Crank length: S - 165mm, (M-XXL) - 170mm |
| Bottom Bracket | Shimano UN101 LL123 |
| Chain | KMC xGlide |
| Cassette | SunRace U9 CS-U980 9AZ; 11-46 teeth; 9 speed |
| Pedals | VP VPE 536 |
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Merida Big Nine 2026 Size Chart
|
Frame Size |
Height cm |
Height Feet / Inches |
|
XS |
< 163 cm |
<5’4” |
|
S |
157 - 173 cm |
5’2” – 5’8” |
|
M |
167 - 183 cm |
5’6” – 6’0” |
|
L |
177 - 190 cm |
5’10” – 6’3” |
|
XL |
187 - 196 cm |
6’2” – 6’5” |
|
XXL |
> 192 cm |
>6’4” |
What size frame do I need if I am between sizes? - read here
Merida Big Nine 2026 Geometry Chart
| Size | S | M | L | XL | XXL |
|---|---|---|---|---|---|
| Stack | 606 | 606 | 615 | 624 | 634 |
| Reach | 432 | 452 | 472 | 492 | 512 |
| Head Tube Length | 95 | 95 | 105 | 115 | 125 |
| Head Tube Angle | 68 | 68 | 68 | 68 | 68 |
| Bottom Bracket Drop | 65 | 65 | 65 | 65 | 65 |
| Fork Length | 506 | 506 | 506 | 506 | 506 |
| Chainstay Length | 430 | 433 | 436 | 439 | 442 |
| Wheelbase | 1123 | 1146 | 1173 | 1199 | 1226 |
| Top Tube Length (horizontal) | 591 | 611 | 633 | 655 | 678 |
| Standover Height | 704 | 704 | 710 | 731 | 752 |
| Seat Tube Length | 380 | 410 | 440 | 470 | 500 |
| Seat Tube Angle | 75.3 | 75.3 | 75.3 | 75.3 | 75.3 |
| Tyre Size | 29" | 29" | 29" | 29" | 29" |
All measurements are in mm unless otherwise stated.
The above table shows the standard geometry for the bicycle as shipped, other geometry configurations may be available with certain bikes. Please contact us via Live Chat to find out more.
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Merida Big Nine 80 Mountain Bike 2026 - Hardtail MTB
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