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Our urban hire bikes are perfect for strolls through Hagley Park


Merida Silex 400 Gravel Bike - Fall Green (Grey/Black)

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Versatility never goes out of style. The Silex 400 is an adventure-ready gravel bike that’s equally at home doing a rough commute or winter training laps, thanks to a durable aluminium frame, lightweight carbon fork and huge tyre clearance of 700 x 45 mm – or even 42 mm tyres with fenders. Merida’s MTB-inspired geometry gives you huge confidence off-road, the huge number of mounts mean you’ll be able to carry what you need easily, and the durable Shimano 2x10-speed GRX groupset and matching hydraulic disc brakes will make short work of the ups and downs.

The Silex turns any ride into an adventure, whether you’re on a multi-day gravel bikepacking mission or just taking the fun route to work. The latest version builds on the test-winning pedigree of the original Silex but adds even more off-road capability, thanks to a slacker head angle and boosted tyre clearance of up to 700x45 mm or even 42 mm with fenders. Merida combined that confident mountain bike-inspired handling with all-surface versatility so that it is utterly stable when loaded up with luggage but still fast and fun when you put the hammer down. Merida added their sleek WIRE PORT cable routing for improved looks – and fewer cables to catch on with a handlebar bag – and the carbon fibre fork now has more cargo mounts plus internal routing for a dynamo hub. With the ability to use 1x or 2x drivetrains, you can pick your gearing to suit the task at hand or your own personal preference, opening up a world of opportunity for you and your Silex. 

Key Features 

  • Aluminium frame with dropped chainstay for 700x45 mm clearance
  • Relaxed head angle and MTB-style geometry for off-road stability
  • Carbon fork with cargo mounting points and routing for dynamo hub
  • Wide-range gravel-specific Shimano GRX 2x10-speed groupset
  • Shimano GRX hydraulic disc brakes
  • Multiple mounting points for cages, bags and fenders
  • WIRE PORT internal cable routing for clean looks and scuff free bag fitting 


Axles: MERIDA EXPERT TR including removable lever 6/4 mm allen key
Brakes: Shimano GRX400 Hydraulic disc
Cassette: Shimano CS-HG50 11-36 teeth 10 speed
Chain: KMC X10
Colour (text): FALL GREEN (GREY/BLACK)
Crankset: Shimano GRX600 46-30 teeth 170 mm-XS/S, 172,5 mm-M, 175 mm-L/XL
Derailleur rear: Shimano GRX400
Fork: MERIDA SILEX II CF2 Tapered material: carbon 700x47C max. wheelsize
Frame: SILEX LITE II material: aluminium 700x45C max. wheelsize 100x12/142x12 mm axle standard BSA bottom bracket standard
Grip: MERIDA ROAD Expert
Handlebar: MERIDA EXPERT GRII material: aluminium 400 mm (XS-S) , 420 mm (M) , 440 mm (L/XL)
Handlebar stem: MERIDA TEAM CC III material: aluminium 31.8 mm diameter -6° stem angle 80 mm all sizes
Headset: MERIDA 8158
Hubs: VP CLK170F / VP CLK270R 100x12 mm width front hub 32 spoke holes centerlock 142x12 mm width rear hub 32 spoke holes centerlock
Rim: MERIDA EXPERT SL II 23 mm inner width 25 mm height material: aluminium Tubeless ready (tubeless
Rotor front: Shimano RT10 180 mm
Rotor rear: Shimano RT10 160 mm
Saddle: MERIDA COMP SL V-mount
Seat post: MERIDA COMP CC material: aluminium 27.2 mm diameter 5 mm setback
Spokes: Black stainless
Tyre front: Maxxis Rambler 700x45C fold TR EXO
Tyre rear: Maxxis Rambler 700x45C fold TR EXO
Weight: Max Weight: 120 kg Total weight of bike, rider and luggage
Wheel size: 700c



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] 550 565 580 600 620
CS chain stay length [mm] 430 430 430 430 430
HTA head tube angle [°] 69.5 69.5 69.5 69.5 69.5
STA seat tube angle [°] 74.5 74.5 74.5 74.5 74.5
BD bottom bracked drop [mm] 75 75 75 75 75
HT head tube [mm] 130 150 170 190 210
FL fork length [mm] 415 415 415 415 415
R reach [mm] 392 402 412 426 441
S stack [mm] 570 588 607 626 645
WB wheel base [mm] 1048 1065 1082 1104 1126
SH stand over height [mm] 744 771 798 825 852