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Silex remains all about the road less travelled, the spirit of adventure and camaraderie, offering nimble, confidence-inspiring off-road handling.
Silex remains all about the road less travelled, the spirit of adventure and camaraderie, offering nimble, confidence-inspiring off-road handling.
Merida

Merida Silex 400 Gravel Bike in Warm Slate Grey/Black

£1,650.00
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

Merida Silex 400 Gravel Bike in Warm Slate Grey/Black

Season:2026

Brand:Merida

Code:P-R583

The Silex has always been about the road less travelled and riding with good company. As gravel has split into racing and adventure, Merida's new Mission platform covers the competitive side.

The Silex carries on as the bike you actually want to live with, and it's earned that reputation. For context: a week before this generation launched, Matej Mohoric won the 2023 Gravel World Championships on one.

The Merida Silex 400 gravel bike started life as a blank canvas. Rather than stretching a road or cyclocross frame to fit the job, Merida drew on modern mountain bike geometry: long top tube, relaxed head tube, short stem.

On loose gravel, rooted singletrack, or anything in between, that translates to a bike that handles with real composure. The second-generation frame also has a revised fork design, meaning you can move to a suspension fork later without touching the geometry.

For longer rides and loaded touring, the aluminium frame has five bottle boss positions, rack mounts, internal dropper post routing, and provision for a dynamo system. The Merida 400 Silex is built to carry what you need, wherever you're heading.

Braking across the Silex range (the 200 aside) is handled by hydraulic disc brakes with 180mm rotors, calipers mounted on the chainstay via flat-mount for a clean finish and more even force distribution through the frame.

Features:

  • Five bottle boss positions, rack mounts, and dropper post routing on the aluminium frame
  • Revised fork design allows a suspension fork swap without affecting the geometry
  • Hydraulic disc brakes with 180mm rotors across the range (except the 200)
  • Warm Slate Grey/Black, a colourway that looks even better in person

Not sure which size is right for you? Our Merida bikes sizing guide isa good place to start. If you want to compare the Merida Silex 400 against other models in the range, the team is happy to help.

Technical Information
  • Frame
    Lite II - 6066 triple butted hydroformed and smooth welded aluminium with internal cable routing. Tapered head tube, Inboard disc mounts. Threaded BB, 142 x 12mm axle standard, Max tyre size 700 x 45c (42c with mudguards)
  • Fork
    Merida Silex II CF2; Tapered; material: carbon; 700x47C max. tyre size
  • Headset
    Acros ICR Merida External neck w/diecast splitring
  • Stem
    Merida Team CC III; material: aluminium; 31.8 mm diameter; -6 degree rise; Length: 80mm all sizes
  • Handlebar
    Merida Expert GRII; material: aluminium; (XXS-S) - 400mm wide, M - 420mm wide, (L-XL) - 440mm wide
  • Grip
    Merida Road Expert
  • Brake Type
    Hydraulic Disc
  • Brake Lever
    Shimano GRX 410
  • Brake Calipers
    Front: Shimano GRX400; Hydraulic disc with Shimano RT54; 180mm Rear: Shimano GRX400; Hydraulic disc with Shimano RT54; 180mm
  • Tyres
    Front: Maxxis Rambler; 700x45C; kevlar bead; TR; EXO Rear: Maxxis Rambler; 700x45C; kevlar bead; TR; EXO
  • Wheel Size
    700c
  • Wheels
    Rims: Merida Expert SL III; 23mm inner rim width; material: aluminium; Tubeless ready (tubeless tape and valves not included) Spokes: Black stainless Front Hub: Shimano HB-TC500; 100x12mm; 28 Spoke; Centerlock Rear Hub: Shimano FH-TC500-HM; 12-142mm; 28 Spoke; Centerlock
  • Speeds
    20
  • Front Derailleur
    Shimano GRX400
  • Rear Derailleur
    Shimano GRX400
  • Shift Levers
    Front: Shimano GRX 400; disc, Rear: Shimano GRX 400; disc
  • Chain
    KMC X10
  • Cassette
    Shimano CS-HG50; 11-36 teeth; 10 speed
  • Chainset
    Shimano GRX600; 46-30 tooth chainset; Crank length: (XXS-XS) - 165mm, (S-M) - 170mm, (L-XL) - 172.5mm
  • Bottom Bracket
    Attached
  • Saddle
    Merida Comp SL; 25% recycled material; V-mount
  • Seat Post
    Merida Comp CC; 27.2mm diameter; in-line; material: aluminium
Sizing Information
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