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Today’s Deals2025 Merida
REACTO 4000
A carbon frame aero bike with upper mid-range components and shimano 105 hydraulic disc brakes.
Compare the full range
Manufacturer Price
2400 £(2768 €)| Weight | 9,0 kg |
|---|---|
| Frame | Carbon |
| Fork | Carbon |
| Wheels | 700c Aluminum |
| Drivetrain | 2 × 12 |
| Groupset | 105 |
| Brakes | Shimano 105 Hydraulic Disc |
Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.
Compare the full REACTO model range
View Comparison156cm – 166cm
163cm – 174cm
171cm – 182cm
179cm – 189cm
185cm – 195cm
🐐 Estimated
- 176cm, size S, Just right
- 196cm, size XL, Just right
- 85cm, size S, Just right
- 175cm, size SM, Fits small
Mar 2026 · Cory Benson
The new Merida Reacto 5 is the fastest aero road bike yet in benchmark GST wind tunnel testing, but it's more versatile, too!
Mar 2026 · Alex Hunt
With a 14-watt gain and a geometry frozen in time, Merida’s fifth-generation Reacto chases balance alongside aero improvement.
Aug 2025
Five years on, the Reacto is still a fast and planted aero road bike that is able to compete with the best in the category
Good specification
Sharp handling
Stiff bottom bracket
Stealthy appearance
Balanced geometry for an aero bike
No power meter
30mm tyre clearance is dated
New model imminent
Jan 2022 · Matthew Loveridge
Merida's most affordable aero bike retains the pro machine's best qualities
Exciting
Racy ride
Comfortable
Super-clean design
Basic wheels
Non-tubeless tyres
| Frame | REACTO CF3 IV, material: carbon, 700x30C max. wheelsize, 100x12/ 142x12mm axle standard, BB86,5 bottom bracket standard BB Standard: BB86/BB92, 86.5mm, Press Fit Tire Clearance: 30c |
|---|---|
| Fork | REACTO CF3 IV DISC, material: carbon, 700x30C max. wheelsize |
| Bottom Bracket | Shimano SM-BB72-41B, Pressfit 86.5 |
| Headset | MERIDA TEAM SL, VP-MRBHB (OP203 neck) |
| Stem | MERIDA EXPERT SL 2PII, material: aluminium, 9° stem angle, 90 mm (3XS/XXS/XS), 100 mm (S), 110 mm (M/L), 120 mm (XL), |
| Handlebar | MERIDA EXPERT CW, material: aluminium, 380mm (3XS-XXS-XS-S), 400mm (M-L-XL) |
| Saddle | MERIDA EXPERT SL, 6% recycled and 23% nature material, V-mount, incl. MERIDA minitool |
| Seatpost | MERIDA TEAM CW, Aero shape, 15mm setback, Carbon Type: Rigid |
| Rear Derailleur | Shimano 105, GS |
|---|---|
| Front Derailleur | Shimano 105 |
| Crank | Shimano 105, 52-36 teeth, 165 mm-XXS, 170 mm-XS, 172.5 mm-S/M/L, 175 mm (XL), |
| Shifters | Shimano 105 disc |
| Cassette | Shimano 105 R7101, 11-34 teeth, 12 speed |
| Chain | Shimano M6100-12 |
| Brakes | Shimano 105, Hydraulic disc Type: Shimano 105 Hydraulic Disc |
| Brake Levers | Shimano 105 |
| Rims | MERIDA EXPERT CW, 19mm inner width, 30mm height, material: aluminium, Tubeless ready (tubeless tape and valves not included) |
|---|---|
| Spokes | Double Butted Black stainless |
| Front Hub | Shimano HB-TC500 / Shimano HB-TC500-HL, 100x12mm width front hub, 28 spoke holes, Centerlock, 12-142mm width rear hub, 28 spoke holes, Centerlock |
| Rear Hub | Shimano HB-TC500 / Shimano HB-TC500-HL, 100x12mm width front hub, 28 spoke holes, Centerlock, 12-142mm width rear hub, 28 spoke holes, Centerlock |
| Tires | Front: Continental Ultra Sport III, 700x28C, fold, Rear: Continental Ultra Sport III, 700x28C, fold |
| Disc Rotors | Shimano RT54, 160mm |
First added 9 July
Last updated 13 December
Not listed for 167 days