MERIDA Reacto 4000
| Model Year | 2026 |
|---|---|
| Options | XXS Silk Black (Glossy Dark Silver) In Stock (Warehouse) XS Silk Black (Glossy Dark Silver) In Stock (Warehouse) S Silk Black (Glossy Dark Silver) In Stock (Warehouse) M Silk Black (Glossy Dark Silver) In Stock (Warehouse) L Silk Black (Glossy Dark Silver) In Stock (Warehouse) XL Silk Black (Glossy Dark Silver) In Stock (Warehouse) |
| Style | Entry level carbon aero bike with race proven ProTour geometry CF3 carbon frame equipped with Shimano 105 2 x 12 speed mechanical groupset and hydraulic disc brakes.The Reacto has always been a class leading aero bike combining state of the art aerodynamics with rider comfort. The latest generation incorporated wider tyres for increased comfort but adding wider tyres resulted in aerodynamic compromises so a myriad of small improvements were required to over-compensate. In the World Tour no area can be ignored. Computational Fluid Dynamics (CFD) was used to model virtual wind tunnel performance guiding the changes which offered the most aerodynamic benefit: Tiny details like integrating the front Disc Cooler behind the fork and the rear disc caliper in the rear triangle and creating new bolt through axles with the thread integrated into the fork dropout minimise drag and improve aerodynamic performance. The Reacto CF5 needs just 209 watts effort for 45 km/h speed All Reacto have powerful hydraulic disc brakes with chainstay mounted calipers for better brake force dissipation. The flat mount standard keeps everything neat whilst sitting calipers on CNC'd aluminium Disc Cooler fins helps reduce operating temperatures by up to 35%. Cycling Weekly described it as 'without doubt one of the most complete bikes available on the market' Cyclingnews 'an utterly brilliant and faultless machine' and Cycling Plus were 'hugely impressed'. |
| Frame | CF3 IV - carbon with the same geometry and aeroydanmic profiling as the CF5 IV with a more budget friendly carbon lay up. Tapered headtube, Disc Cooler, BB86 BB standard,142 x12mm axle standard. Max tyre size 700 x 30c |
| Forks | Reacto CF3 IV Disc; material: carbon; 700x30C max. tyre size |
| Rear Derailleur | Shimano 105 disc |
| Front Derailleur | Shimano 105 |
| Chainset | Shimano 105 R7100; 52-36 tooth chainset; Crank length: XXXS - 160mm, (XXS-XS) - 165mm, (S-M) - 170mm, (L-XL) - 172.5mm |
| Bottom Bracket | Shimano SM-BB71-41B; Pressfit 86.5 |
| Chain | Shimano M6100-12 |
| Cassette | Shimano 105 R7101; 11-34 teeth; 12 speed |
| Headset | Merida Team SL (OP-203 neck) |
| Stem | Merida Expert SL 2PII; material: aluminium; -9 degree rise; Length: (XXXS-XS) - 90mm, S - 100mm, (M-L) - 110mm, XL - 120mm |
| Handlebars | Merida Expert CW; material: aluminium; (XXXS-S) - 380mm wide, (M-L) - 400mm wide, XL - 420mm wide |
| Front Brake | Shimano 105; Hydraulic disc with Shimano RT54; 160mm |
| Rear Brake | Shimano 105; Hydraulic disc with Shimano RT54; 160mm |
| Brake Levers | Shimano 105 |
| Rims | Merida Expert CW; 19mm inner rim width; 30mm rim depth |
| Front Hub | Shimano HB-TC500; 100x12mm; 28 spoke; Centerlock |
| Rear Hub | Shimano FH-TC500-HL; 12-142mm; 28 Spoke; Centerlock |
| Spokes | Double Butted Black stainless |
| Tyres | Continental Grand Prix; 700x28C; kevlar bead |
| Saddle | Merida Expert SL; 6% recycled and 23% nature material; V-mount; incl. Merida minitool |
| Seatpost | Merida Team CW; Aero shape; 15mm layback; material: carbon |
| Pedals | Not included |
| Tape | Merida Road Expert |
| Miscellaneous | Disc cooler F/R and Merida Multitool with saddlebox |
As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying.






