Merida Big Seven 20 Mountain Bike 2025 - Hardtail MTB
This bike features a TFS IV frame built from double-butted and technoformed 6061 aluminium—strong, lightweight, and tailored for agile off-road handling. Designed with modern features like full internal cable routing, a tapered head tube for potential fork upgrades, and chainstay-mounted disc brakes for better protection and stopping efficiency.
Key Features:
- Double-butted 6061 aluminium TFS IV frame with internal cable routing
- SR Suntour XCT30 HLO fork with 100mm coil travel and lockout
- Shimano 8-speed drivetrain with ESSA rear mech and shifters
- Shimano MT200 hydraulic disc brakes with 160mm rotors
- 27.5" wheels with 2.2" Merida K1080 off-road tyres
- Tapered head tube allows for future fork upgrades
- Available with 0% APR finance
Up front, the SR Suntour XCT30 HLO suspension fork delivers 100mm of coil-sprung travel—enough to take the sting out of rooty trails and bumpy bridleways. The hydraulic lockout lets you firm things up when climbing or on smooth ground, boosting your pedalling efficiency.
Shimano’s ESSA 8-speed drivetrain offers reliable shifting performance and a wide 11–45T cassette range, ideal for tackling varied terrain. The Shimano MT200 hydraulic disc brakes provide predictable stopping power, even in the wet.
Rolling on agile 27.5” wheels wrapped in grippy 2.2” Merida K1080 tyres, the Big Seven 20 balances speed and control, making it a great fit for smaller riders or those who prefer a nimble ride feel over chunky stability. And with plenty of frame mounts for mudguards and a kickstand, it’s practical too.
Whether you're dipping into mountain biking or upgrading from a basic bike, the Merida Big Seven 20 is a rock-solid start to your trail-riding journey.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | TFS IV - 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 27.5" x 2.25" |
| Fork | SR Suntour XCT30 HLO; Coil; 100mm travel; Lockout; Max tyre size 27.5" x 2.25" |
| Headset | Merida M2345 |
| Stem | Merida CC; aluminium; 31.8mm diameter; 6 degree rise - Length - 70mm (XS-S), 90mm (M-L) |
| Bars | Merida CC; aluminium; 690mm wide; 15mm rise |
| Front Brake | Shimano BR-MT200; hydraulic disc brake caliper with Shimano RT10; 160mm rotor |
| Rear Brake | Shimano BR-MT200; hydraulic disc brake caliper with Shimano RT10; 160mm rotor |
| Brake Lever | SHIMANO MT200 |
| Rear Mech | Shimano ESSA RD-U2000-8; GS |
| Shifters | Shimano ESSA SL-315-8 |
| Speed | 8 |
| Rims | Merida CC; 17mm inner rim width; Aluminium |
| Front Hub | Shimano TX505; 100 x 9mm; 32 spoke; Centerlock |
| Rear Hub | Shimano TX505; 135 x 9mm; 32 spoke; Centerlock |
| Spokes | Black steel |
| Front Tyre | Merida K1080; 27.5" x 2.2"; wire bead |
| Rear Tyre | Merida K1080; 27.5" x 2.2"; wire bead |
| Seat Post | Merida CC; 30.9mm diameter; 15 mm layback; Aluminium |
| Saddle | Merida Sport comfort |
| Chainset | Shimano ESSA FC-U2001 32 tooth chainset; Aluminium; Crank length - 170mm (XS/S), 175mm (M/L) |
| Bottom Bracket | Shimano BB-UN101 73-123 |
| Chain | KMC Z8.3 |
| Cassette | Shimano CS-HG400-8; 11-45 teeth; 8 speed |
| Pedals | VP VPE-891 |
Merida Big Seven 2025 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 Seven 2025 Geometry Chart
| Size | XS | S | M |
|---|---|---|---|
| Stack | 563 | 577 | 591 |
| Reach | 378 | 394 | 409 |
| Head Tube Length | 100 | 115 | 130 |
| Head Tube Angle | 69 | 69 | 69 |
| Bottom Bracket Drop | 30 | 30 | 30 |
| Fork Length | 487 | 487 | 487 |
| Chainstay Length | 430 | 430 | 430 |
| Wheelbase | 1056 | 1078 | 1099 |
| Top Tube Length (horizontal) | 550 | 570 | 590 |
| Standover Height | 649 | 689 | 740 |
| Seat Tube Length | 340 | 380 | 440 |
| Seat Tube Angle | 73 | 73 | 73 |
| Tyre Size | 27.5" | 27.5" | 27.5" |
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 Seven 20 Mountain Bike 2025 - Hardtail MTB
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