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Merida Silex 400 Gravel/Adventure Bike

Highlights: MTB Inspired gravel geometry Carbon fork with tapered steerer Shimano GRX400 groupset Hydraulic disc brakes 12mm bolt through axles Star buy – matching the high-quality aluminium frame and highly acclaimed gravel specific Shimano GRX400 2 x 10 groupset and hydraulic disc brakes. Second g

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Made for the way you ride.

Highlights: MTB Inspired gravel geometry Carbon fork with tapered steerer Shimano GRX400 groupset Hydraulic disc brakes 12mm bolt through axles Star buy – matching the high-quality aluminium frame and highly acclaimed gravel specific Shimano GRX400 2 x 10 groupset and hydraulic disc brakes. Second g

IN THE DETAILS

Star buy – matching the high-quality aluminium frame and highly acclaimed gravel specific Shimano GRX400 2 x 10 groupset and hydraulic disc brakes.

The original was a ground up design that rather than take a road or cyclocross bike and re-jig the recipe, started with modern MTB inspired geometry; long top and head tubes and a short stem, offering nimble, confidence-inspiring off road handling. It is fair to say that riding wise the original concept was incredibly well received by the press and consumers alike, at launch, it was hailed as the most comfortable and versatile bike Merida had ever made.

Over time gravel has developed and riding has evolved, splitting in to racing and adventure. Silex remains all about the road less travelled, the spirit of adventure and camaraderie. The Silex retains all of the key qualities that made the original so successful but becomes more off-road capable with a 1.5 degree slacker head angle and bigger volume tyres. All frames have five sets of bottle bosses, the aluminium frame has rack mounting points offering multiple luggage carrying options for any adventure and has the ability to run internal routed dropper posts and even dynamo systems.

Specification, at a glance.

Frame & suspension

FrameLite 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)
ForkSilex CF2 II; Full carbon; tapered steerer, 100 x12mm axle standard; Max tyre size: 700 x 45c (42c with mudguards)

Gears & drivetrain

Drivetrain20
ShiftersShimano GRX400
Front derailleurShimano GRX400
Rear derailleurShimano GRX400
Bottom bracketAttached
ChainKMC X10
ChainsetShimano GRX600; 46-30 tooth chainset; Crank length – 170mm (XS/S), 172.5mm (M), 175mm (L/XL)
CassetteShimano CS-HG50; 11-36 teeth; 10 speed

Braking

Brake leversShimano GRX400
Front brakeShimano GRX400; Hydraulic disc brake caliper with Shimano RT10; 180mm rotor
Rear brakeShimano GRX400; Hydraulic disc brake caliper with Shimano RT10; 160mm rotor
BrakesHydraulic disc brakes

Wheels & tyres

Wheel size700c
RimsMerida Expert SLII; 23mm inner rim width; 25 mm rim depth; aluminium; Tubeless ready (tubeless tape and valves not included)
SpokesBlack stainless
Front hubShimano HB-TC500; 100 x 12mm; 28 spoke; Centerlock
Rear hubShimano FH-TC500-HL; 142 x 12mm; 28 spoke; Centerlock
Front tyreMaxxis Rambler; 700 x 45C; Kevlar bead; TR; EXO
Rear tyreMaxxis Rambler; 700 x 45C; Kevlar bead; TR; EXO

Cockpit & contact points

GripsMerida Expert
HandlebarMerida Expert GRII; aluminium; 400mm (XS-S) , 420mm (M) , 440mm (L/XL)
StemMerida Team CC III; aluminium; 31.8mm diameter; -6 degree rise – Length – 80mm (all sizes)
Headset320.52.631
SaddleMerida Comp SL; V-mount – made with 25% recycled material
SeatpostMerida Comp CC; 27.2mm diameter; 5 mm layback; Aluminium

Details & equipment

ColourGreen/Grey/Black
Model year2025
More about this model

Highlights:

  • MTB Inspired gravel geometry
  • Carbon fork with tapered steerer
  • Shimano GRX400 groupset
  • Hydraulic disc brakes
  • 12mm bolt through axles

Star buy – matching the high-quality aluminium frame and highly acclaimed gravel specific Shimano GRX400 2 x 10 groupset and hydraulic disc brakes.

Second generation of the Merida Silex.

The original was a ground up design that rather than take a road or cyclocross bike and re-jig the recipe, started with modern MTB inspired geometry; long top and head tubes and a short stem, offering nimble, confidence-inspiring off road handling. It is fair to say that riding wise the original concept was incredibly well received by the press and consumers alike, at launch, it was hailed as the most comfortable and versatile bike Merida had ever made.

Over time gravel has developed and riding has evolved, splitting in to racing and adventure. Silex remains all about the road less travelled, the spirit of adventure and camaraderie. The Silex retains all of the key qualities that made the original so successful but becomes more off-road capable with a 1.5 degree slacker head angle and bigger volume tyres. All frames have five sets of bottle bosses, the aluminium frame has rack mounting points offering multiple luggage carrying options for any adventure and has the ability to run internal routed dropper posts and even dynamo systems.

A week before its launch, Matej Mohoric rode to victory at the 2023 Gravel World Championships proving it is fairly handy off-road! If we are absolutely honest, the looks of gen 1 were not to everyone’s taste, the long headtube made the front end look awkward. Gen 2 runs a revised fork design meaning you can swap to a suspension fork without affecting the geometry and visually the longer fork and shorter headtube look far more appealing. To match the new off road capability all Silex models (with the exception of the 200) are equipped with powerful hydraulic disc brakes and 180mm rotors. Calipers are mounted on the chainstay for better dissipation of braking forces using the flat-mount standard for a neat, flush fit. On the carbon models calipers sit on top of CNCd aluminium Disc Cooler fins reducing operating temperatures by up to 35%; particularly important when running fully loaded.

Specification

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
  • 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 Lever
  • 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; 160mm rotor
Grip
  • 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)
Head Set
  • 320.52.631
Saddle
  • Merida Comp SL; V-mount – made with 25% recycled material
Seat Post
  • Merida Comp CC; 27.2mm diameter; 5 mm layback; Aluminium;
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
Colour
  • Green/Grey/Black
Season
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Merida Silex 400 Gravel/Adventure Bike
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