What is the Merida Reacto 4000 used for?

The Merida Reacto 4000 is designed for serious road riding with a focus on speed and aerodynamics, making it ideal for competitive racing and long-distance rides.

Why is the Merida Reacto 4000 different?

The Reacto 4000 stands out due to its lightweight CF3 carbon frame, Shimano 105 components, and an aerodynamic design. These features ensure enhanced performance, durability, and efficiency on the road compared to other standard road bikes.

Who is the Merida Reacto 4000 designed for?

The Reacto 4000 is perfect for serious cyclists seeking a high-performance road bike for competitive racing and long-distance rides which also boasts class-leading comfort. Its aerodynamic features and advanced components cater to those aiming for speed and efficiency.

Merida Reacto 4000 Road Bike Matte Mountain Blue/Black

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Step 1: Measure your height

Take off your shoes
Stand with your back straight against a wall
Balance a book on your head to mark your height on the wall
Measure your height by the distance from the floor to the mark

Your height:

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Step 2: Adjust your inseam

Based on your height, we’ve calculated a starting point.
You can measure your inseam by tucking a book between your legs so there is pressure but it isn’t uncomfortable.
Inseam typically falls with 5cm of the average.

Your inseam:

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For the Merida Reacto 4000 Road Bike Matte Mountain Blue/Black we suggest the following size.

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XXS

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Inseam: --

Adjusted Height: --

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PERFECT RIDE GUARANTEE

If you don't love it, you can swap it, up to 30 days from purchase!* Learn more »

FREE BIKE BUILD

We'll build your bike for free when you click and collect at any 99 Bikes store.

FIRST FREE TUNE-UP

Every bike comes with a complimentary free tune-up and safety check. Learn more »

LIGHTWEIGHT CARBON FRAME

The Reacto CF3 IV MAT carbon frame offers a perfect blend of weight savings and stiffness, enhancing overall performance on the road.

SHIMANO 105 COMPONENTS

Equipped with a Shimano 105 groupset, this bike provides consistent and accurate shifting for smooth rides.

AERODYNAMIC DESIGN

The Reacto 4000 is engineered for aerodynamic efficiency, the frame handlebars and seatpost all feature an aero shape that minimises drag and maximises speed.

XXS

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Legend

Available size

Current size

Unavailable size

Suggested sizing

Merida Reacto 4000 Road Bike Matte Mountain Blue/Black geometry diagram

Legend

ST Seat Tube
STA Seat Tube Angle
R Reach
TT Top Tube
BD Bottom Bracket Drop
S Stack
CS Chain Stay Length
HT Head Tube
WB Wheel Base
HTA Head Tube Angle
FL Fork Length

Wheel Size

700c

Stack

529

542

557

571

593

Reach

384

390

395

400

409

Top Tube Length

536

545

560

575

590

Seat Tube Length

500

520

540

560

590

Seat Tube Angle

74.0

73.5

73.0

Fork Length

385

Head Tube Length

112

128

140

155

176

Head Tube Angle

72.0

72.5

73.5

74.0

Handlebar Height

Bottom Bracket Drop

Chainstay Length

Wheelbase

Standover Height

771

792

810

826

853

Minimum Seat Height

Maximum Seat Height

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