Merida Big Trail 300 Mountain Bike 2025 - Hardtail MTB
Designed to take on challenging trails and adventurous rides, the Merida Big Trail 300 offers a robust setup with quality components for confident, responsive handling. With its air-sprung fork, wide handlebars, and trail-oriented geometry, it provides a balanced mix of control and agility, perfect for tackling descents and climbing.
Key Features:
- Frame: BIG.TRAIL TFS II; aluminium; modern geometry for confident handling
- Front Suspension: SR Suntour XCR34 Air with 140mm travel for smoother rides
- Drivetrain: Shimano CUES U4000 9-speed for versatile gearing options
- Brakes: Shimano MT200 hydraulic disc; 180mm rotors for reliable stopping
- Wheels: 29” Merida Comp CC II; tubeless-ready rims with Kenda Regolith tyres
- Standout Feature: Dropper seat post for quick saddle height adjustments
- Finance Option: Available with 0% APR finance
The Merida Big Trail 300 is built on a lightweight yet strong aluminium frame designed for stability on the roughest trails. The frame features Merida's TFS II construction, optimising strength-to-weight for the demands of trail riding. With 140mm of front suspension travel from the SR Suntour XCR34 Air fork, it offers ample shock absorption for tackling rocks and roots, allowing for smoother descents and greater rider comfort.
The bike’s Shimano CUES U4000 drivetrain delivers reliable shifting across its 9-speed setup, giving you flexibility on varying terrain. Paired with the Shimano MT200 hydraulic brakes, which provide strong, controlled stopping power via 180mm rotors, you can navigate steep or technical trails confidently. The 29” wheels with tubeless-ready Merida Comp CC II rims and Kenda Regolith tyres add rolling efficiency and durability.
Complete with a Merida Comp TR dropper post, you can easily adjust the saddle height on the go, optimising your positioning for climbs and descents. With its capability to handle technical trails while remaining an enjoyable ride for day-long explorations, the Merida Big Trail 300 is a reliable partner for any mountain biking enthusiast.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | BIG.TRAIL TFS II; MAT aluminium; 29x2.5" max. maximum tyre clearance; 148x12 AST; BSA BBR |
| Fork | SR Suntour XCR34; Air; 140mm travel; platform |
| Headset | Acros ICR Merida external neck; Upper and lower IPS sealing |
| Stem | Merida Comp TR; aluminium; 35mm diameter; +7'degree rise - Size - 40 mm |
| Bars | Merida Comp TR; aluminium; 780mm wide; 20mm rise |
| Front Brake | Shimano MT200; 2 piston with Shimano RT10; 180mm rotor |
| Rear Brake | Shimano MT200; 2 piston with Shimano RT10; 180mm rotor |
| Brake Lever | SHIMANO MT200 |
| Rear Mech | Shimano CUES U4000; |
| Shifters | Shimano CUES U4000 |
| Speed | 9 |
| Rims | Merida Comp CC II; 25mm inner rim width; aluminium; tubeless ready |
| Front Hub | Shimano TC500-B; 110x15mm; 32 spoke; Centerlock |
| Rear Hub | Shimano TC500-HM-B; 148x12mm; 32 spoke; Centerlock |
| Spokes | Black stainless |
| Front Tyre | Kenda Regolith; 29x2.4"; wire |
| Rear Tyre | Kenda Regolith; 29x2.4"; wire |
| Seat Post | Merida Comp TR II Dropper Post; 34.9mm diameter; 0 mm layback; XShort: 150 mm seat post travel - Short: 170 mm seat post travel - Mid, Long: 200 mm seat post travel - XLong: 230 mm seat post travel |
| Saddle | Merida Comp SL; V-mount |
| Chainset | Shimano CUES U4000; 32 teeth - 170 mm for all sizes |
| Bottom Bracket | FSA BB-7420ST 127.5mm |
| Chain | KMC xGlide |
| Cassette | Shimano LG300; 11-46 teeth; 9 speed |
| Pedals | Resin Platform |
Merida Big Trail 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 Trail 2025 Geometry Chart
| Size | S | M | L | XL |
|---|---|---|---|---|
| Stack | 636 | 645 | 654 | 663 |
| Reach | 435 | 455 | 480 | 505 |
| Head Tube Length | 100 | 110 | 120 | 130 |
| Head Tube Angle | 64 | 64 | 64 | 64 |
| Bottom Bracket Drop | 70 | 70 | 70 | 70 |
| Fork Length | 551 | 551 | 551 | 551 |
| Chainstay Length | 435 | 435 | 435 | 435 |
| Wheelbase | 1189 | 1214 | 1243 | 1272 |
| Top Tube Length (horizontal) | 581 | 603 | 630 | 657 |
| Standover Height | 721 | 724 | 726 | 729 |
| Seat Tube Length | 400 | 420 | 445 | 475 |
| Seat Tube Angle | 76.5 | 76.5 | 76.5 | 76.5 |
| Tyre Size | 29" | 29" | 29" | 29" |
| Stack to Reach Ratio | 1.46 | 1.42 | 1.36 | 1.31 |
| Seat Post Mounting Depth Max | 315 | 335 | 360 | 390 |
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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