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Merida Silex 400 Gravel Bike Black
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- 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
- Shimano GRX400 hydraulic disc brakes
- Maxxis Rambler 700x45c tyres, tubeless ready
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. Dreaming of big biking adventures doesn't mean you don't value the sensible.
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 brakes will make short work of the ups and downs.
| 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: | BLACK (GREY/TITAN) |
| Colour (text): | BLACK (GREY/TITAN) |
| 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 |
| Season: | 2025 |
| Seat clamp: | MERIDA EXPERT |
| 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: | 10.7 kg weighed at frame size M / Weight limit: 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" |
| seat tube [mm] | 460 | 490 | 520 | 550 | 580 |
| top tube [mm] | 550 | 565 | 580 | 600 | 620 |
| chain stay length [mm] | 430 | 430 | 430 | 430 | 430 |
| head tube angle [°] | 69.5 | 69.5 | 69.5 | 69.5 | 69.5 |
| seat tube angle [°] | 74.5 | 74.5 | 74.5 | 74.5 | 74.5 |
| bottom bracket drop [mm] | 75 | 75 | 75 | 75 | 75 |
| head tube [mm] | 130 | 150 | 170 | 190 | 210 |
| fork length [mm] | 415 | 415 | 415 | 415 | 415 |
| reach [mm] | 392 | 402 | 412 | 426 | 441 |
| stack [mm] | 570 | 588 | 607 | 626 | 645 |
| wheel base [mm] | 1048 | 1065 | 1082 | 1104 | 1126 |
| stand over height [mm] | 744 | 771 | 798 | 825 | 852 |
Merida Silex Bike Sizing Chart
Merida is an international bike brand with its headquarters in Taiwan, the R&D department is based near Stuttgart in Germany. To be based in Germany has historical reasons for MERIDA but the precise location was chosen specifically because the region around Stuttgart is one of the hot spots of the automotive and machine building industry which Germany is famous for and attracts a hugely skilled design and engineer labor force.
The Merida team are more than just highly trained and experienced bicycle creators – they simply love everything ‘bike’. Most of their R&D staff are daily bike commuters while others are serious mountain bikers, who regularly compete in Marathon, Enduro and Downhill competitions, or licensed road racers and even ambitious Ironman triathletes. Get the behind the scenes view of the Merida R&D centre and meet some of their key members of staff in the below video.
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Please note, due to challenges in the product supply chain, bike specifications are subject to change without notice. Specifications listed below may not match exactly as shown in the photo.
