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Whether you're riding gravel roads, racing, or bikepacking, the Merida Silex 4000 is designed to take you further.
Whether you're riding gravel roads, racing, or bikepacking, the Merida Silex 4000 is designed to take you further.
Merida

2025 Merida Silex 4000 Gravel Bike - Matte Bronze/Gold/Black

£1,899.00 £2,250.00 16% off
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

2025 Merida Silex 4000 Gravel Bike - Matte Bronze/Gold/Black

Season:2025

Brand:Merida

Code:P-Q210

Merida Silex 4000 Gravel Bike: Carbon Gravel Bike with Shimano GRX400 Groupset & Hydraulic Disc Brakes

The Merida Silex 4000 Gravel Bike combines lightweight carbon construction with advanced features designed for adventure. Built around MTB-inspired gravel geometry, this bike delivers nimble handling and off-road capability, making it perfect for tackling gravel roads, trails, and long-distance adventures.

  • Lightweight Carbon Frame: Durable and responsive, offering a smooth ride on a variety of terrains.
  • Carbon Fork with Tapered Steerer: Provides enhanced steering precision and comfort over rough surfaces.
  • Shimano GRX400 Groupset: A gravel-specific 2x10 drivetrain offering reliable shifting performance on all surfaces.
  • Hydraulic Disc Brakes: Powerful braking performance, with 180mm rotors for superior stopping power in any condition.
  • 12mm Bolt Through Axles: Ensures a stiff, secure connection for improved handling and safety.

Gravel-Specific design for all terrains. The second generation of the Merida Silex builds on the success of the original, featuring MTB-inspired geometry with a longer top tube and shorter stem for improved handling, stability, and comfort. The updated design includes a slacker 1.5° head angle for increased off-road capability, and it can now accommodate bigger volume tyres for added grip and comfort on rougher trails.

Adventure-Ready features. The Silex is designed with the spirit of adventure in mind. Its offers rack mounting points for easy luggage carrying, making it an ideal companion for gravel touring or bikepacking. All frames come with five sets of bottle bosses, providing plenty of space for hydration on long rides. The frame is also compatible with internal routed dropper posts and dynamo systems, enhancing versatility for adventure cyclists.

Proven performance. The Merida Silex 4000 proved its worth at the highest level when Matej Mohoric rode it to victory at the 2023 Gravel World Championships, showcasing its serious off-road capabilities.

Improved design for a sleeker look. The updated generation 2 model addresses the previous bike’s design criticism, with a revised fork and shorter headtube that provides a cleaner, more appealing look while maintaining the bike's excellent performance and geometry.

Advanced Braking System. Equipped with hydraulic disc brakes and flat-mount calipers mounted on the chainstay, the Merida Silex ensures effective brake force dissipation, especially when fully loaded. The carbon models feature Disc Cooler fins on the calipers to reduce brake temperature by up to 35%, ensuring peak performance even under heavy use.

The Merida Silex 4000 Gravel Bike is the perfect blend of lightweight construction, innovative geometry, and off-road readiness, ideal for cyclists who crave both performance and adventure. Whether you're riding gravel roads, racing, or bikepacking, the Silex 4000 is designed to take you further.

Technical Information
  • FRAME
    CF2 carbon II, gravel geometry for stable but nimble handling. Tapered head tube Inboard disc mounts. Threaded BB, 142 x12mm axle standard, disc cooler technology, Max tyre size 700 x 45c (42c with mudguards)
  • FORK
    Silex CF2 II; Full carbon; tapered steerer, 100 x12mm axle standard; Max tyre size: 700 x 45c (42c with mudguards)
  • GEARS
    20
  • SHIFTERS
    Shimano GRX400
  • FRONT DERAILLEUR
    Shimano GRX400
  • REAR DERAILLEUR
    Shimano GRX400
  • BOTTOM BRACKET
    Attached
  • CHAIN
    KMC X10
  • CHAINSET
    Shimano GRX600; 46-30 tooth chainset; Crank length - 170mm (XS/S), 172.5mm (M), 175mm (L/XL)
  • CASSETTE
    Shimano CS-HG50; 11-36 teeth; 10 speed
  • BRAKE LEVERS
    Shimano GRX400
  • FRONT BRAKE
    Shimano GRX400; Hydraulic disc brake caliper with Shimano RT10; 180mm rotor
  • REAR BRAKE
    Shimano GRX400; Hydraulic disc brake caliper with Shimano RT10; 180mm rotor
  • GRIPS
    Merida Expert
  • HANDLEBAR
    Merida Expert GRII; aluminium; 400mm (XS-S) , 420mm (M) , 440mm (L/XL)
  • STEM
    Merida Team CC III; aluminium; 31.8mm diameter; -6 degree rise - Length - 80mm (all sizes)
  • HEADSET
    320.52.631
  • PEDALS
    Not included
  • SADDLE
    Merida Comp SL; V-mount - made with 25% recycled material
  • SEATPOST
    Merida Expert CC; 27.2mm diameter; 15mm layback; Carbon
  • WHEEL SIZE
    700c
  • RIMS
    Merida Expert SLII; 23mm inner rim width; 25 mm rim depth; aluminium; Tubeless ready (tubeless tape and valves not included)
  • SPOKES
    Black stainless
  • FRONT HUB
    Shimano HB-TC500; 100 x 12mm; 28 spoke; Centerlock
  • REAR HUB
    Shimano FH-TC500-HL; 142 x 12mm; 28 spoke; Centerlock
  • FRONT TYRE
    Maxxis Rambler; 700 x 45C; Kevlar bead; TR; EXO
  • REAR TYRE
    Maxxis Rambler; 700 x 45C; Kevlar bead; TR; EXO
As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying. Please note that this bike does not come with pedals.
Sizing Information

SIZING

Size in ft5'3" - 5'5"5'4" - 5'9"5'7" - 5'11"5'10" - 6'2"6'1" - 6'5"
Size in cm162 - 167cm165 - 177cm173- 185cm181 - 192cm188 - 200cm
Bike SizeXSSMLXL

GEOMETRY

Silex - LiteSMLXL
Seat Tube470mm500mm530mm560mm
Top Tube Horizontal565mm580mm600mm620mm
Head Tube Length150mm170mm190mm210mm
Head Tube Angle69.5°69.5°69.5°69.5°
Head Tube Angle74.5°74.5°74.5°74.5°
Chain Stays430mm430mm430mm430mm
Bottom Bracket Drop75mm75mm75mm75mm
Fork Length415mm415mm415mm415mm
Standover Height771mm798mm825mm852mm
Stack588mm607mm626mm645mm
Reach402mm412mm426mm441mm
Wheelbase1065mm1082mm1104mm1126mm
Professional Opinion
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