SHEET 80 OF 309 · Merida · 2027 · race
Reacto 4000
Entry-level carbon aero road bike running mechanical 105 on alloy wheels, with 32mm tyre clearance for training and racing.
How it scores
Calculated from the published specifications below. See the formula.
- Comfort
- 37
- Speed
- 64
- Climbing
- 58
- Versatility
- 12
- Value
- 34
Full specification
✓ Specs checked against the manufacturer
Last checked 4 Sept 2026 against the manufacturer's own page . The weightfigure is our estimate — the manufacturer publishes none. Caveat: Size L geometry row. This is Merida's current MY27 Reacto 4000 on the new CF3 V frame, not a 2025 or 2026 bike: Merida's MY26 Reacto 4000 page is archived and no UK retailer on our list still prices it. Merida publishes no UK price; the £2,400 price came from Tredz and is the full RRP. Merida publishes no complete-bike weight for this model, only a 1,185g frame weight, so the 8.9kg shown is our estimate. Merida's spec sheet documents no mudguard or rack mounts, so both are recorded false.
- Price (RRP)
- £2,400
- Frame
- carbon
- Groupset
- Shimano 105 R7100 12-speed mechanical
- Shifting
- Mechanical
- Weight
- 8.9 kg (claimed, size 56/M)
- Brakes
- Disc
- Stack / reach
- 571 / 400 mm (ratio 1.43)
- Tyre clearance
- 32 mm
- Stock tyres
- 28 mm
- Lowest gear
- 36×34 (29 gear inches)
- Mudguard mounts
- No
- Rack mounts
- No
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