The 2025 Merida Silex 400 is a versatile gravel bike designed for riders seeking adventure without sacrificing practicality.
Whether you're commuting on rough roads, taking winter training laps, or embarking on a multi-day bikepacking journey, the Silex 400 is up for the challenge.
Built with a durable aluminium frame and a lightweight carbon fork, it features massive tyre clearance of up to 700 x 45 mm (or 42 mm with fenders), providing comfort and stability on a variety of surfaces.
The bike's mountain bike-inspired geometry delivers confidence off-road, with a slacker head angle for stability and control.
Its wide range of mounting points allows for easy carriage of gear, making it perfect for extended adventures.
Equipped with the Shimano GRX 2x10-speed groupset, the Silex 400 offers durable performance, smooth shifting, and powerful braking, making light work of climbs and descents alike.
The Silex series is renowned for turning any ride into an adventure.
Whether you're exploring new trails or commuting to work, the bike's proven off-road capability, combined with its versatility, has earned it numerous awards and accolades, including a Taipei Cycle d&i Award 2024.
The Silex 400’s design emphasizes versatility, with features like WIRE PORT internal cable routing for a cleaner look, ensuring your handlebars remain free from clutter even when using a bag.
Its carbon fork has been updated with more cargo mounts and dynamo hub routing, allowing you to power lights for long-distance touring.
The Silex is compatible with both 1x and 2x drivetrains, so you can configure it for any terrain or personal preference, making it a true all-surface, do-it-all bike.
Adventure-Ready
Features:
- Award-winning aluminium frame with a dropped chainstay, offering tyre clearance up to 700 x 45 mm.
- Multiple mounting points for water bottles, fork cages, and accessories, making it ideal for bikepacking and commuting.
- WIRE PORT internal cable routing, ensuring a sleek, tidy look and preventing interference with handlebar bags.
- Carbon fork with additional cargo mounts and internal routing for a dynamo hub.
- Relaxed head angle and mountain bike-style geometry for improved off-road handling and stability.
- Shimano GRX 2x10-speed groupset, providing wide-range gearing and strong gravel-specific performance.
- Powerful hydraulic disc brakes with flat-mount calipers and 180 mm rotors for superior stopping power.
- Specifications:Model Year: 2025Frame: SILEX LITE II (XS, S, M, L, XL)Fork: MERIDA SILEX II CF2, carbon with cargo mountsRims: MERIDA EXPERT SL IIHubs: Shimano HB-TC500 / Shimano HB-TC500-HMFront Tyre: Maxxis Rambler, 45 mm, tubeless-readyRear Tyre: Maxxis Rambler, 45 mm, tubeless-readyCrankset: Shimano GRX600, 2xCassette: Shimano Claris HG50Chain: KMC X10Shifters: Shimano GRX400Front Derailleur: Shimano GRX400Rear Derailleur: Shimano GRX400Brakes: Shimano GRX400 with Shimano RT10 rotors, 180 mmBrake Lever: Shimano GRX400Headset: Acros ICR MERIDA EXTERNAL neck with diecast split ringStem: MERIDA TEAM CC III, 80 mm for all sizesHandlebar: MERIDA EXPERT GRIIGrip: MERIDA ROAD ExpertSeat Post: MERIDA COMP CCSaddle: MERIDA COMP SLBuilt for Adventure:The second-generation Silex builds upon the success of the original, which introduced mountain bike-inspired geometry to the gravel world, featuring a longer top tube and shorter stem for nimble handling.
The original Silex was praised for being one of the most comfortable and versatile bikes Merida had ever made, and the new generation takes this further with a slacker head angle and bigger tyres for better off-road capability.
- Each Silex model includes five sets of bottle bosses, and the aluminium frame has rack mounts, offering versatile luggage options.
It’s also ready for internal dropper posts and dynamo systems, giving you the flexibility to tackle longer adventures with ease.
With its improved looks, more capable geometry, and enhanced features, the 2025 Merida Silex 400 is perfect for those looking to explore the road less travelled.
- Enhanced Design:The second generation of the Silex addresses previous design critiques with a visually appealing front end, featuring a shorter head tube and longer fork.
The updated fork also allows for a suspension fork swap without compromising geometry, adding to its off-road versatility.
In addition, all models (except the Silex 200) come equipped with hydraulic disc brakes and 180 mm rotors.
The carbon models feature CNC’d aluminium disc cooler fins, reducing brake temperatures by up to 35%, which is particularly useful when riding fully loaded.
- In summary, the 2025 Merida Silex 400 is a high-performing, adventure-ready gravel bike with the versatility to tackle anything from commuting to long-distance bikepacking, making it a great choice for riders seeking confidence on and off the road.