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The Merida Silex 400 is an adventure-ready gravel bike with MTB-inspired geometry, a durable aluminium frame, and a versatile Shimano GRX 2x10-speed groupset.
The Merida Silex 400 is an adventure-ready gravel bike with MTB-inspired geometry, a durable aluminium frame, and a versatile Shimano GRX 2x10-speed groupset.
Merida

Merida Silex 400 Gravel Bike in Grey/Black

£1,650.00
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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
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30 Day Returns

We offer a 30 day returns policy. We will only refund return postage costs on damaged/faulty goods (a postage receipt will be needed). Refunds will only be returned to the original payment method – this may take up to 10 days to appear depending on how you paid.

WHAT WE CAN DO:

  • We offer a 30 day returns policy.
  • We will only refund return postage costs on damaged/faulty goods (a postage receipt will be needed)
  • Refunds will only be returned to the original payment method – this may take up to 10 days to appear depending on how you paid.

WHAT WE CANNOT DO

  • We cannot refund your return postage if you have changed your mind or ordered incorrectly.
  • We are unable to accept returns where the goods or packaging is lost, damaged or not in the condition you received it in.Please note that bikes must be returned in a securely-packaged bike box.
  • We are unable to offer a return on items that have been bought in the sale, gift voucher's or store credits can be issued.
  • We cannot accept returns without a completed returns form – items received without the correct paper work will delay the returns process.
  • We are unable to offer a refund without proof of purchase.

WHAT YOU NEED TO DO

  • Always hold on to your packaging (including bike boxes) until you are completely satisfied with your purchase – we cannot accept returns without this.Please note that bikes must be returned in a securely-packaged bike box.
  • Try and keep packaging intact as damaged packaging may invalidate your right to a refund.
  • When returning your order under warranty please make sure any items of clothing, footwear or bikes have been suitably cleaned – failure to do this may delay or invalidate your warranty claim.
  • It is your responsibility to ensure that the item is returned to us in a safe and secure manner, we suggest that you use a recorded postal/courier service. Please ensure that the service you use covers the value of the goods in the parcel.

Merida Silex 400 Gravel Bike in Grey/Black

Season:2027

Brand:Merida

Code:P-S435

The Merida Silex 400 is an adventure-ready gravel bike designed for the road less travelled, offering everyday versatility and off-road capability.

The Silex concept features modern MTB-inspired geometry with long top and head tubes and a short stem, providing nimble, confidence-inspiring handling. This second-generation frame includes a revised fork design that allows for the installation of a suspension fork without affecting geometry.

Built for adventure, the aluminium frame includes five sets of bottle bosses and rack mounting points, offering multiple luggage-carrying options. The bike features internal routing for dropper posts and dynamo systems, alongside the sleek WIRE PORT cable routing for a clean look. The carbon fork includes additional cargo mounts and internal routing for a dynamo hub.

Equipped with a durable Shimano GRX 2x10-speed groupset and powerful hydraulic disc brakes with 180mm rotors, the Silex 400 is ready for any terrain. The frame provides generous tyre clearance of up to 700x45 mm, or 42 mm when using fenders.

Features:

  • Award-winning aluminium frame with dropped chainstay for 700x45 mm clearance
  • Multiple mounting points for cages, bags, and fenders
  • WIRE PORT internal cable routing for clean aesthetics and bag fitting
  • Carbon fork with cargo mounting points and routing for dynamo hub
  • Relaxed head angle and MTB-style geometry for off-road stability
  • Wide-range gravel-specific Shimano GRX 2x10-speed groupset
Technical Information
  • Frame
    SILEX LITE II
  • Frame material
    Aluminium
  • Frame size
    XXS, XS, S, M, L, XL
  • Bottom bracket standard
    BSA
  • Fork
    MERIDA SILEX II CF2
  • Fork material
    Carbon
  • Fork features
    Tapered, cargo mounting points, internal routing for dynamo hub
  • Rim
    MERIDA EXPERT SL III
  • Rim specifications
    23mm inner width, 26mm height, aluminium, tubeless ready
  • Hubs
    Shimano TC500 / Shimano TC500-HM
  • Front hub
    100x12mm, 28 spoke holes, Centerlock
  • Rear hub
    12x142mm, 28 spoke holes, Centerlock
  • Front tyre
    Schwalbe G-One Comp K-Guard TLR, 700x45C
  • Rear tyre
    Schwalbe G-One Comp K-Guard TLR, 700x45C
  • Crank
    Shimano GRX600, 46-30 teeth
  • Bottom bracket
    Shimano SM-RS501, 68mm
  • Cassette
    Shimano Claris HG50, 11-36 teeth, 10 speed
  • Chain
    KMC X10
  • Shifters
    Shimano GRX 400
  • Front derailleur
    Shimano GRX400
  • Rear derailleur
    Shimano GRX400, mechanical, 12 speed
  • Brake lever
    Shimano GRX 410
  • Brakes
    Shimano GRX400, 2 piston, hydraulic
  • Rotors
    Shimano RT54, 180mm
  • Headset
    Acros ICR MERIDA external neck w/diecast splitring
  • Stem
    MERIDA TEAM CC III, aluminium, 31.8mm diameter, -6° angle, 80mm
  • Handlebar
    MERIDA EXPERT GR II, aluminium, 400mm (XXS-XS-S), 420mm (M), 440mm (L/XL)
  • Grip
    MERIDA ROAD EXPERT
  • Seat post
    MERIDA COMP CC, 27.2mm diameter, 0mm setback, aluminium
  • Saddle
    MERIDA COMP SL, 25% recycled material, V-mount
  • Seat clamp
    MERIDA EXPERT
Sizing Information
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