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- Multiple mounting points
- Carbon CF2 fork
- Shimano GRX400 2x10 groupset
- Hydraulic disc brakes
The Merida Silex 4000 Gravel Bike is an all-road and gravel bike ready for back lane adventures, gravel roads, and forest trails. Featuring a strong, lightweight carbon frame, it includes mounting points for luggage, water bottles, fenders, and rear racks, making it adventure-ready. The Carbon CF2 fork enhances ride comfort and steering precision across terrains, while the Shimano 2x10 drivetrain is ideal for flats and climbs. Shimano GRX hydraulic disc brakes provide superior stopping power, and Maxxis Rambler tires ensure great off-road grip. The Silex 4000, inspired by modern mountain bike geometry, boasts a long top tube, head tube, and short stem for comfort and nimbleness. This bike seamlessly transitions from daily commutes to weekend gravel grinds, bikepacking trips, and forest trails, combining style, comfort, and functionality.
Axles: | MERIDA EXPERT TR including removable lever 6/4 mm allen key |
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Bottom bracket: | Attached |
Brakes: | Shimano GRX400 |
Cassette: | Shimano Claris HG50 11-36T 10 speed |
Chain: | KMC X10 |
Colour: | GUN METAL GREY (BLACK/TITAN) |
Crankset: | 170 mm-XS/S, 172,5 mm-M, 175 mm-L/XL |
Derailleur front: | Shimano GRX400 |
Derailleur rear: | Shimano GRX400 |
Fork: | MERIDA SILEX CF2 II; Tapered; MAT carbon; 700x47C max. WHS |
Frame: | SILEX CF2 II MAT carbon 700x47C maxWHS 100x12142x12 AST BSA BBR |
Grip: | MERIDA ROAD Expert |
Handlebar: | MERIDA EXPERT GRII; MAT aluminium; 400mm (XS-S) , 420mm (M) , 440mm (L/XL) |
Handlebar stem: | MERIDA TEAM CC III; MAT aluminium; 31.8 DSH; -6 ASD |
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 SLII; 23 IWR; 25 HRI; MAT aluminium; Tubeless ready (tubeless |
Rotor front: | Shimano RT10; 180mm |
Rotor rear: | Shimano RT10; 180mm |
Saddle: | MERIDA COMP SL; 25% recycled material; V-mount |
Season: | 2025 |
Seat clamp: | MERIDA EXPERT |
Seat post: | MERIDA EXPERT CC; 27.2 DSP; 15 SSB; Carbon |
Shifters: | Shimano GRX400 |
Spokes: | Black stainless |
Tyre front: | Maxxis Rambler 700x45C fold TR EXO |
Tyre rear: | Maxxis Rambler 700x45C fold TR EXO |
Weight: | 9.9 kg weighed at frame size M / Max Weight: 120 kg Total weight of bike, rider and luggage |
Wheel size: | 700c |
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.