Merida Silex 4000

The 2024 Taipei Cycle d&i Award-winning SILEX 4000 is the entry point to our carbon frameset, combining our lightweight frame with a high-end Shimano GRX componentry with a double chainset. Rugged, tubeless-ready Maxxis Rambler tyres and our mountain bike-inspired geometry provide exceptional trail grip, while quality MERIDA components deliver uncompromising performance. The SILEX turns every ride into an adventure, whether you’re on a multi-day bikepacking trip or just a fun commute. With numerous test wins, press accolades, industry awards and even a world championship title, our SILEX takes gravel bike off-road capability to new heights, thanks to a slacker head angle and increased tyre clearance for up to 700x45mm tyres, or even 42mm with mudguards. We've combined that confident, mountain bike-inspired handling with all-terrain versatility, making it totally stable when loaded, but still fast and fun when you decide to push. With carbon and aluminum frame options, there's a SILEX to suit every budget, but they all share the many attachment points for bags, water bottles, accessories and other features that make this gravel bike so versatile. We've added our WIRE PORT cable routing system for a cleaner look and fewer exposed cables, and the carbon fork used on all models now has more cargo mounts and internal hub dynamo routing. With the option to run 1x or 2x drivetrains, you can choose the gear ratio that best suits your personal preference, opening up a world of possibilities for you and your SILEX.

Features
Carbon frame with a dropped chainstay with a 700x45mm clearance.
Multiple mounting points for bags and mudguards.
Internal cable routing WIRE PORT for a clean look and scratch-free bag mounting.
Carbon fork with cargo mounting points and dynamo routing.
Relaxed head angle and MTB-style geometry for greater stability off-road.
Shimano GRX 2x10-speed groupset.

Technical specifications

Frame

SILEX CF2 II
Material: carbon
700x47C max. wheelsize
100x12/ 142x12 mm axle standard
Bottom bracket: BSA bottom bracket standard
Axles: MERIDA EXPERT TR, including removable lever, 6/4 mm allen key

Fork

MERIDA SILEX II CF2
Tapered
Material: carbon
700x47C max. wheelsize

Brakes

Shimano GRX400, Hydraulic disc
Discs: Shimano RT10, 180 mm

Cockpit

Headset: MERIDA 8158
Bar: MERIDA EXPERT GRII (aluminum), 400 mm (XS-S), 420 mm (M), 440 mm (L/XL)
Stem: MERIDA TEAM CC III (aluminum), 31.8 mm diameter, -6° stem angle, 80 mm all sizes
Bar tape: MERIDA ROAD Expert
Seatpost: MERIDA EXPERT CC, 27.2 mm diameter, 15 mm setback, Carbon
Seatpost clamp: MERIDA EXPERT
Saddle: MERIDA COMP SL, V-mount

Drivetrain

Derailleur: Shimano GRX400
Rear derailleur: Shimano GRX400
Shifters: Shimano GRX400
Crankset: Shimano GRX600, 46-30 teeth, 170 mm-XS/S, 172.5 mm-M, 175 mm-L/XL
Chain: KMC X10
Sprocketset: Shimano CS-HG50, 11-36 teeth, 10 speed

Wheels

Rims: MERIDA EXPERT SL II
23 mm inner width
25 mm height
Material: aluminum
Tubeless ready
Front hub: VP CLK170F, 100x12 mm, Centerlock, 32 spoke holes
Rear hub: VP CLK270R, 142x12 mm, Centerlock, 32 spoke holes
Spokes: Black stainless
Tires: Maxxis Rambler, 700x45C, fold, TR, EXO
Technologies

X-TAPER Headtube
The head tube X-Tapered provides clearance for a tapered fork. Tapered forks offer exceptional stiffness and precision, and provide confidence-inspiring steering.

Internal cable routing
Cables are routed through the frame, entering and exiting through smooth ports. The bike looks clean, while cables are protected from moisture and dirt.

DI2 READY
Bikes/frames with the "Di2 Ready" symbol are ready for Di2 technology with the battery mounted in the seat post or inside the fork.

Nano Matrix Carbon
To protect the integrity of carbon frames, the fibres are bonded together with an epoxy resin with added nanoparticles, increasing impact resistance by up to 40%.

AWS
When creating the individual carbon elements, an inflatable bladder is used to ensure there are no wrinkles inside the tube as they can add weight and create weakness. This results in a lighter, stiffer and stronger frame.

F-Mount
‘Bikes equipped with the F-Mount have integrated mudguard mounts (some bikes require model-specific mudguards), making installation quick and easy.

Disc Cooler
A forged aluminum component under the front and/or rear caliper that allows heat to dissipate through CNC-machined cooling fins. Tests show that temperatures are reduced by approximately 35% and cooling times are shortened, optimizing brake performance.

Internal Clamp
Designing WorldTour bikes is similar to Formula 1: seemingly insignificant details can save fractions of a second. The integrated seatpost clamp minimizes turbulence on the top tube.

Removable F-Mount
A removable dropper bridge can be fitted for a neater and more secure mounting of rear mudguards, but removed for greater mud clearance and a cleaner look.

Wire Port
MERIDA has designed covers that allow all control cables to enter the frame through the headset, creating a clean, uncluttered look, without making structural changes to the frame. Depending on the model, the cables are either routed completely internally (including the bar and stem) or semi-integrated where the cables enter the frame under the stem.