Merida ONE-FORTY 400 (2025)

Mountainbike Merida ONE-FORTY 400

The ONE-FORTY 400 brings an unheard of level of climbing and descending performance into a high-value package built around our test and award-winning aluminium frame. It's got exactly the same ground-breaking geometry as its more expensive brethren, just paired with kit that delivers the performance you need, without the price tag. Dropper posts on all models, a wide-range 11-speed Shimano drivetrain and no-nonsense suspension from Marzocchi get the job done without fuss.

The test and award-winning ONE-FORTY is the ultimate trail bike, made for the toughest trails in the world. It’s the pinnacle of modern trail riding, with a super-steep 80° seat angle, low front end and bottom bracket allow it to clear the most technical climbs, while longer reach figures across all sizes and a well-balanced 65° head angle mean it’s still more than capable of ripping any descent. With our AGILOMETER sizing system, riders can run a longer or shorter reach frame independently of their height, with suspension that becomes more progressive as you size up to better cope with heavier/harder riders. We’ve focused on weight reduction and rolling speed too, for improved efficiency. All bikes come with long travel dropper posts, WIRE PORT cable routing and a reliable threaded bottom bracket plus carbon frames have on-board tool storage and Fidlock magnetic bottle cages.

• Full aluminium frame with FAST kinematic suspension and AGILOMETER sizing
• Marzocchi suspension, 150 mm front, 143 mm rear
• 230 mm dropper post on XLong, 200 mm on Long, 170 mm on Mid and 150 mm on Short and XShort
• Radical trail geometry with full 29er wheels
• Durable, wide-range Shimano CUES 11-speed drivetrain
• Powerful 4-piston hydraulic disc brakes

*Because of ongoing problems in the delivery chain, the bike can be delivered with modifications.

• PROLITE 66 TRIPLE BUTTED ALUMINUM - When creating high-end aluminium frames, we use our proven PROLITE 66 (6066) aluminium, as it is incredibly light and durable. In addition, it works exceptionally well with our hydroforming technology, allowing us to create complex shapes, featuring triple butted wall thicknesses, an almost carbon-like appearance and the best possible stiffness-to-weight ratio. While lesser alloys might be cheaper, it is the ideal choice for high-performance bicycle frames.
• HFS - HYDRO FORMING SYSTEM - ‘C-Mount’ equipped bikes have the fixing points for a rear rack already integrated (some bikes require model specific rear rack), making fitting fast, simple and reliable. 
• X-TAPER HEADTUBE - Steering precision is vital to safe and confident handling, and the X-TAPER HEADTUBE allows us to significantly boost this precision. A larger headset diameter at the bottom paired with a smaller one at the top helps to deal with the strains modern riding and equipment can put on the headtube, all without adding unnecessary weight. It allows tapered forks to be fitted with ease and delivers precise and confidence-inspiring steering.
• SMOOTH WELDING - This is a process we use to give a nice flat finish to our welds instead of the scaled, 'stack of coins' effect TIG welded joints often have. The welder uses the welding torch to go over the joint twice, helping to smooth out the filler material. It takes a lot of skill to do this, but it delivers strong and smart-looking frames that have the appearance of a carbon fibre frame at first look.
• INTERNAL CABLE ROUTING - On the majority of our frames, we run the gear and brake cables and hoses through the frame. The cables enter and exit the frame through smooth sockets, or we use one of our other systems like SMART ENTRY or WIRE PORT to be routed through. Running the cables inside the frame protects them from the elements, gives a clean and neat look and can offer aerodynamic advantages.
• NON-SLIP TIGHTENING - This system means you only need a single tool to tighten important bolts, making it easy to secure them while out on the trail and also making routine maintenance faster and simpler. The bolts have a specially shaped head on one end that fits into a matching recess in the frame, preventing rotation. That means there is no hardware bonded into the frame itself, so damaged threads or bolts can be easily replaced.
• P-FLEX - A suspension design where the traditional pivot point on the seat stay is eliminated in favour of a flexstay design. This uses the compliance of the material and specific shaping of the tubes to allow for the seat and chain stays to move apart as the suspension moves through the travel. By removing this pivot point at the seat and chain stay junction, we save weight, reduce maintenance needs and add stiffness to the frame structure.
• WIRE PORT - MERIDA designed headsets that enable all control cables from the handlebar to enter the frame through the headset cover, creating a clean and uncluttered look, allowing for a lighter, stronger and more aerodynamic frame structure than with conventional cable ports. Depending on the model, the cables are run completely internally (including the bar and stem) or semi-integrated, where the cables enter the frame underneath the stem.
• FAST KINEMATIC - Suspension system that uses a Flexstay design to reduce weight and maintenance, is Adjustable to run 29” or 27.5” wheels without altering the geometry and has Size Tuned shock progression that increases with frame size, so lighter and smaller riders can access all of the travel and heavier riders get the support they need on big hits.
• LONG FENDER - An optional extra coverage mudguard that bolts rigidly to the back end of our bikes, protecting the rider from dirt and water spray while reducing noise, movement and prevent damage to the paintwork.