SILEX 4000

Carbon gravel bike with Shimano's highly acclaimed gravel specific GRX400 2 x 10 groupset and hydraulic disc brakes.
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The Silex was a ground up design project. Rather than taking a road or cyclocross bike and re-jigging the recipe, the starting point for the Silex was modern MTB inspired geometry; long top and head tubes and a short stem, offering nimble, confidence-inspiring handling.

At launch, it was hailed as the most comfortable and versatile bike we had ever made. The cycling press loved it too: “exceptional ride quality” (Cycling Plus), “a highly versatile bike” (IMB), “the best bike of this genre” (Offroad CC).

There's a certain beauty in just riding without watching the time, heading wherever you feel the urge. For those rides, the test and award-winning Silex makes total sense.

The bike has five sets of bottle bosses and rack mounting points offering multiple luggage carrying options.

All Silex models are equipped with powerful hydraulic disc brakes. Calipers are mounted on the chainstay for better dissipation of braking forces using the flat-mount standard for a neat, flush fit. Calipers sit on top of CNCd aluminium Disc Cooler fins, reducing operating temperatures by up to 35%; particularly important when running fully loaded.

  • MTB Inspired gravel geometry
  • Lightweight carbon frame
  • Carbon fork with tapered steerer
  • Shimano GRX400 groupset
  • Hydraulic disc brakes
  • 12mm bolt through axles
  • material: carbon
  • 700x38C / 650Bx45C max. wheelsize
  • 100x12/142x12mm axle standard
  • BB386 bottom bracket standard
frame size S, M, L, XL
  • Tapered
  • material: carbon
  • 700x38C / 650Bx45C max. wheelsize
  • 17mm inner width
  • 22mm height
  • material: aluminium
  • 100x12mm width front hub
  • 32 spoke holes
  • centerlock
  • 142x12mm width rear hub
  • 32 spoke holes
  • centerlock
  • 700x38C
  • fold
  • TR
  • EXO
  • 700x38C
  • fold
  • TR
  • EXO
  • including removeable lever, 6/4mm allen key
  • 46-30 teeth
  • 170 mm-XS/S, 172,5 mm-M, 175 mm-L/XL
crank size 170 mm-XS/S, 172,5 mm-M, 175 mm-L/XL
bottom bracket FSA 386-BB30 PF6000 [Sram FC]
  • 11-36 teeth
  • 10 speed
chain KMC X10
shifters Shimano GRX400
front derailleur Shimano GRX400
rear derailleur Shimano GRX400
brake lever Shimano GRX400
headset SILEX Neck
  • material: aluminium
  • 31.8mm diameter
  • -8° stem angle
  • 80 mm all sizes
stem size 80 mm all sizes
  • material: aluminium
  • 400mm (XS-S), 420mm (M), 440mm (L/XL)
grip MERIDA ROAD EXPERT
  • material: carbon
  • 30.9mm diameter
  • 0mm setback
seat clamp MERIDA SILEX
Bike Frame Geometry Image
Frame Size S M L XL
Tyre Sizes 28" 28" 28" 28"
St Seat Tubes mm 470 500 530 560
Tt Top Tubes mm 564 580 600 620
Cs Chain Stays mm 430 430 430 430
HTA head tube angle [°] 71 71 71 71
STA seat tube angle [°] 74 74 74 74
Bd Bottom Bracket Drops mm 75 75 75 75
Ht Head Tube Lengths mm 180 200 220 240
Fl Fork Lengths mm 398 398 398 398
R Reach mm 390 400 415 430
S Stacks mm 607 626 645 664
Wb Wheel Base mm 1044 1061 1082 1104
Sh Stand Over Height mm 736 765 794 822

Technology

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X-TAPER HEADTUBE

Our X-Tapered headtube offers the space for a tapered fork to be fitted. Tapered forks offer superb stiffness and precise and deliver confidence-inspiring steering.

X-TAPER HEADTUBE
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INTERNAL CABLE ROUTING

Cables are routed through the frame, entering and exiting through smooth sockets. The bike looks neat, whilst the cables are protected from moisture and dirt.

INTERNAL CABLE ROUTING
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DI2 READY

Bikes/frames with the symbol ‘Di2 Ready’ are prepared for the installation of Di2 technology with battery mounting in the seat post or within the fork steerer.

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NANO MATRIX CARBON

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

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AWS

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

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F-MOUNT

‘F-Mount’ equipped bikes have integrated fittings for mud guards (some bikes require model specific mud guards), making fitting fast and simple.

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C-MOUNT

‘C-Mount’ equipped bikes have the fixing points for a rear rack already integrated (some bikes require model specific rear rack), making fitting fast, simple and reliable. 

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DISC COOLER

A forged aluminium component under the front and/or rear caliper allowing heat to dissipate through CNC-milled cooling fins. Tests show that temperatures are reduced by around 35 % and cooling times are shortened, optimising the performance of the brake.

DISC COOLER
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INTERNAL CLAMP

Designing WorldTour bikes is similar to Formula 1: apparently nondescript details can result in saving split seconds. Integrated seat-post clamping minimises turbulence at the top tube.

INTERNAL CLAMP