Merida 2025 Silex 400

Everyday versatility paired with an adventure-ready attitude. Our quality aluminium frame and carbon fork pair off-road ready handling with all-road versatility, while the robust Shimano groupset has you covered.

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. Our 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 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. We've 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. With carbon and aluminium frame options, there's a SILEX to suit every budget, but all of them share the multiple mounting points, fender racks and other features that lend themselves so well to this drop-bar do-everything machine. We’ve added our sleek WIRE PORT cable routing for improved looks – and fewer cables to catch on with a handlebar bag – and the carbon fibre fork used on all models 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.

• Aluminium frame with dropped chainstay for 700x45 mm clearance
• Multiple mounting points for cages, bags and fenders
• WIRE PORT internal cable routing for clean looks and scuff free 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

Merida 2025 Silex 400

Frame

Colour: Black(Grey/Titan)
Frame: SILEX LITE II; MAT aluminium; 700x47C max.WHS; 100x12/142x12 AST; BSA BBR
Fork: MERIDA SILEX CF2 II; Tapered; MAT carbon; 700x47C max. WHS
Shock: NA

Drivetrain

Crankset: Shimano GRX600; 46-30 ATC, 170 mm-XS/S, 172,5 mm-M, 175 mm-L/XL
Pedals:
Chain: KMC X10
Bottom Bracket: Attached
Rear Derailleur: Shimano GRX400
Front Derailleur: Shimano GRX400
Derailleur Shifter: Shimano GRX400
Freewheel/Cassette: Shimano CS-HG50; 11-36 ATC; 10 GER

Braking System

Brakes: Shimano GRX400; Hydraulic disc [F] Shimano RT10; 180mm [R] Shimano RT10; 160mm
Brake Levers:

Wheels

Tyres: [F] and [R] Maxxis Rambler; 700x45C; fold; TR; EXO
Wheels/Rims: MERIDA EXPERT SLII; 23 IWR; 25 HRI; MAT aluminium; Tubeless ready (tubeless
Hubs: [F] Shimano HB-TC500; 100x12 WHF; 28 SPH; Centerlock [R] Shimano FH-TC500-HM; 12-142 WHR; 28 SPH; Centerlock

Other

Handlebar: MERIDA EXPERT GRII; MAT aluminium; 400mm (XS-S) , 420mm (M) , 440mm (L/XL)
Stem: MERIDA TEAM CC III; MAT aluminium; 31.8 DSH; -6 ASD
Saddle: MERIDA COMP SL; 25% recycled material; V-mount

Merida 2025 Silex 400

Frame Size	XS	S	M	L	XL
Tyre Sizes	28"	28"	28"	28"	28"
ST seat tube [mm]	460	490	520	550	580
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 bracket 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