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- Lightweight carbon frame and fork
- Shimano 105 groupset for smooth shifting
- Hydraulic disc brakes for reliable stopping
- Aero seat post for enhanced aerodynamics
- Continental Grand Prix tires for superior grip
The Merida Reacto 4000 Road Race Bike in Matt Mountain Blue/Black is a high-performance road bike designed for speed and efficiency. Its lightweight carbon frame and fork provide a responsive and agile ride, while the Shimano 105 groupset ensures precise and smooth gear changes. Equipped with hydraulic disc brakes, the bike offers reliable stopping power in all conditions. The aerodynamic design, including an aero seat post, enhances speed, making it ideal for competitive racing or fast-paced rides. With Continental Grand Prix tires, the Reacto 4000 delivers excellent grip and durability, ensuring a confident ride on various road surfaces.
Axles: | F: MERIDA EXPERT SL | R: MERIDA EXPERT SL; including removable lever; 6/4mm allen key |
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Bottom bracket: | Shimano SM-BB71-41B; Pressfit 86.5 |
Brakes: | F: Shimano 105; Hydraulic disc | R: Shimano 105; Hydraulic disc |
Cassette: | Shimano 105 R7101; 11-34 ATC; 12 GER |
Chain: | Shimano M6100-12 |
Colour: | Matt Mountain Blue(Black) |
Crankset: | Shimano 105 R7100; 52-36 ATC; 160 mm-3S, 165 mm-XXS/XS, 170 mm-S/M, 172.5 mm-L/XL |
Derailleur front: | Shimano 105 |
Derailleur rear: | Shimano 105; GS |
Fork: | REACTO CF3 IV DISC; MAT carbon; 700x30C max. WHS |
Frame: | REACTO CF3 IV; MAT carbon; 700x30C max. WHS; 100x12/ 142x12 AST; BB86,5 BBR |
Grip: | MERIDA ROAD Expert |
Handlebar: | MERIDA EXPERT CW; MAT aluminium; 380mm (3S-XXS-XS-S); 400mm (M-L); 420mm (XL) |
Handlebar stem: | MERIDA EXPERT SL 2PII; MAT aluminium; -9 ASD; 90 mm-3S/XXS/XS, 100 mm-S, 110 mm-M/L, 120 mm-XL |
Headset: | MERIDA TEAM SL (OP-203 neck) |
Hubs: | F: Shimano HB-TC500; 100x12 WHF; 28 SPH; Centerlock | R: Shimano FH-TC500-HL; 12-142 WHR; 28 SPH; Centerlock |
Rim: | MERIDA EXPERT CW; 19 IWR; 30 HRI |
Rotor front: | Shimano RT54; 160mm |
Rotor rear: | Shimano RT54; 160mm |
Saddle: | MERIDA EXPERT SL; 6% recycled and 23% nature material; V-mount; incl. MERIDA minitool |
Season: | 2026 |
Seat post: | MERIDA Team CW; Aero shape; 15 SSB; Carbon |
Shifters: | F: Shimano 105 disc | R: Shimano 105 disc |
Tyres: | F: Continental Grand Prix; 700x28C; fold | R: Continental Grand Prix; 700x28C; fold |
Wheel size: | 700c |

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.