SILEX 4000


Entry-level carbon SILEX with MTB inspired geometry for superior off-road handling. Equipped with Shimano's dedicated GRX gravel groupset, this bike loves fast sessions on tarmac as much as rugged gravel climbs where the perfect gear is key.
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Our entry into the SILEX carbon range, the SILEX 4000 features the same test and award-winning full carbon frame as its two bigger brothers but, due to clever component choice, is able to come in at a very attractive price. The comfortable and stable geometry makes the SILEX perfect for long trips in the saddle. The 700c wheels specced with capable yet fast-rolling gravel tyres allow our SILEX to cover ground easily, whatever the surface.

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; our most comfortable and versatile road bike ever. With its modern MTB inspired geometry, long top and head tubes and short stem, it offers nimble, confidence-inspiring handling. While often seen on extended gravel and rough road outings, as well as bikepacking trips, the SILEX also found a strong following in comfort-orientated road riding connoisseurs as well as commuters and city traffic weavers. The more rugged 650b wheeled alternative to the 700c SILEX has managed to obtain multiple test wins as well as comfort awards, and is coming back in the form of the fully loaded and wirelessly shifted SILEX+ LIMITED. The 'classic' 700c SILEX also impressed the press with the 400 securing a test win in Cycling Plus, being certified as having a 'huge fun factor', 'superb riding position' and 'brilliant off-road handling'.

  • Full carbon frame and fork
  • 700c wheel for well balanced off and on-road capability
  • Internal cable routing for a clean and easy to load frame
  • Comfort geometry for long hours in the saddle
  • MTB inspired handling for superior off-road capability
  • Three bottle cage positions and bosses for further luggage capacity on the fork legs
  • material: carbon
  • 700x38C / 650Bx45C max. wheelsize
  • 100x12/142x12mm axle standard
  • BB386 bottom bracket standard
frame size XS, S, M, L, XL
  • Tapered
  • material: carbon
  • 700x38C / 650Bx45C max. wheelsize
brake lever Shimano GRX400
headset VP B303AC
  • material: aluminium
  • 400mm (XS-S)
  • 420mm (M)
  • 440mm (L/XL)
  • material: aluminium
  • 31.8mm diameter
  • -8° stem angle
  • 80 mm
grip MERIDA ROAD Expert
derailleur (f) Shimano GRX400
derailleur (r) Shimano GRX400
shifters Shimano GRX400 Disc
  • material: carbon
  • 30.9mm diameter
  • 0mm setback
seat clamp MERIDA SILEX
  • V-mount
  • incl. MERIDA minitool
chain KMC X10
  • 46-30 teeth
  • 170 mm-XS/S, 172,5 mm-M, 175 mm-L/XL
  • 11-36 teeth
  • 10 speed
bottom bracket FSA 386-BB30 PF6000 [SMN FC]
  • 100x12mm width front hub
  • 32 spoke holes
  • centerlock
  • 142x12mm width rear hub
  • 32 spoke holes
  • centerlock
  • 17mm inner width
  • 22mm height
  • material: aluminium
  • Tubeless ready (tubeless tape and valves not included)
  • 700x38C
  • fold
  • TR
  • EXO
  • 700x38C
  • fold
  • TR
  • EXO
  • including removable lever
  • 6/4mm allen key
spokes Black stainless
max. weight 120 kg
Bike Frame Geometry Image
Frame Size XS S M L XL
Tyre Sizes 28" 28" 28" 28" 28"
ST seat tube [mm] 440 470 500 530 560
TT top tube [mm] 548 564 580 600 620
CS chain stay length [mm] 430 430 430 430 430
HTA head tube angle [°] 71 71 71 71 71
STA seat tube angle [°] 74 74 74 74 74
BD bottom bracked drop [mm] 75 75 75 75 75
HT head tube [mm] 160 180 200 220 240
FL fork length [mm] 398 398 398 398 398
R reach [mm] 379 390 400 415 430
S stack [mm] 588 607 626 645 664
WB wheel base [mm] 1027 1044 1061 1082 1104
SH stand over height [mm] 706 736 765 794 822
No. Item-No. Name Info Pieces Torque NM
1 A2258000143 CABLE GUIDE for Di2 1
2 A2258000189 CABLE GUIDE for mechanical 1
3 A2300000550 SCREW M3x0.5 L12mm 1 2~3
4 A2247000095 CLAMP for seatpost 1 4~5
5 A2136000116 MOUNT for FD 1
6 A2322000048 COVER for FD-Mount 1
7 A2300000056 SCREW M5x0.8 L12mm 2 4~5
8 A2143000149 CABLE PLUG for FD 1
9 A2322000046 PROTECTOR for CS 1
10 A2258000053 CABLE PLUG for Di2 1
11 A2258000056 CABLE PLUG for mechanical 1
12 A2164000027 DISC COOLER rear; for FM160 only 1
13 A2302000018 NUT for rear axle M12x1,5 1
14 A2300000310 SCREW M3x0.5 L18mm 1 3~4
15 A2300000314 SCREW M3x0.5 L15mm 1 3~4
16.1 A2311000095 RD-HANGER DH - 065 for SHIMANO direct mount 1
16.2 A2311000062 RD-HANGER DH - 054 for ROAD-RD 1
17 A2143000017 BLIND PLUG 1
18 A2300000485 SCREW M4x0.7 L6mm 2 3~4
19 A2298000061 SCREW M5x0.8 L15mm 4 3~4
20 A2143000161 BLIND PLUG 6
21 A2258000098 CABLE GUIDE for Di2 1

To reduce production and delivery times, we are sometimes forced to make last-minute specification changes. Please be aware that those changes might not be reflected on these product pages and images.




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.



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.



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.



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%.



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.



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



‘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. 



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.



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.