Merida REACTO 4000 2025 bike details 01

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Summary

The Merida REACTO 4000, a Road bike released in 2025, priced at £2400. It weighs approximately 9kg (size dependent). The frame is Carbon Fiber and the fork is Carbon Fiber. The bike is equipped with a Shimano 105 groupset (Electric Shifting: No). It uses Disc Brake. It rolls on a MERIDA EXPERT CW wheelset. It features a Shimano SM-BB72-41B, Pressfit 86.5 bottom bracket. It uses Internally Routed cable routing. It supports tyres up to 30 mm. Yes It comes with a lifetime warranty. Curious how it stacks up against similar bikes? Compare below...

Bike Info

Worldwide Shipping: Yes

Delivery across the globe!

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Warranty: Lifetime

Limited warranty website average: 3.12 years

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Released: 2025

The bike was released 1 years ago

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Bike Type: Road

The style of riding intended for this bike

Bike Spec

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Weight: 9 kg

The website average for Road bikes is 8.56 kg. This bike is 0.43 kg over the average. Total bike weight may vary depending on frame size.

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Groupset

Shimano 105

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Wheelset

MERIDA EXPERT CW

Disc Brake

Brake Type: Disc Brake

Welcome to the future!

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Frameset Material

Carbon Fiber

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Max Tire Size: 30 mm

This is the max tire size you can use

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UCI Approved: Yes

You can use for official races

Sizing & Geometry

Frame Sizes

3XS XXS XS S M L XL

This frame comes in 7 sizes, this is 1.44 more sizes than the website average.

Handebar Sizes Available

38 40 42 44

Crank Arm Sizes Available

170 172.5 175

Sizing & Geometry

Frame measurements and sizing vary by bike size. Measurements are shown for each available frame size.

Swipe across to view all sizes.

Geometry 3XS XXS XS S M L XL
Sizing
Wheel size 700c 700c 700c 700c 700c 700c 700c
Frame geometry
Stack (mm) 512 517 529 542 557 571 593
Reach (mm) 373 377 384 390 395 400 409
Effective top tube (mm) 520 525 535 545 560 575 590
Seat tube (mm) 470 500 520 540 560 590 610
Head tube (mm) 101 106 118 132 140 153 175
Standover (mm) 742 766 785 804 823 849 868
Handling
Head angle (°) 71 71.50 72.50 73 73.50 73.50 74
Seat angle (°) 74.50 74.50 74 74.50 73.50 73 73
Chainstay (mm) 408 408 408 408 408 408 408
Wheelbase (mm) 978 981 981 987 990 1,001 1,012
Fork offset (mm) 45 45 45 45 45 45 45

Frame Details

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Frame Weight

This frame weighs 1146g

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Frame Material

Carbon Fiber

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Forks

REACTO CF3 IV, material: carbon, 700x30C max. wheelsize, 100x12/ 142x12mm axle standard, BB86,5 bottom bracket standard

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Fork Material

The forks are made from Carbon Fiber

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Cables: Internally Routed

Routed through bars, stem and frame

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Axel Type: Thru-axle

How the wheels are secured to the frame

Disc Brake

Brake Type: Disc Brake

Welcome to the future!

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Brake Mount: Flat Mount

How the calipers are mounted

No

Integrated bar and stem: No

You can use any bar and stem

Drivechain Details

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Groupset name

Shimano 105

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Electric Groupset: No

This bike doesn't have electric gears

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Shifters

Shimano 105 disc

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Front Derailleur

Shimano 105 R7100, braze-on.

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Rear Derailleur

Shimano 105, GS

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Cassette

Shimano 105 R7101-12.

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Cranks

Shimano 105 R7100 (160mm – 172.5mm)

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Power Meter: No

This bike doesn't have a power meter

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Bottom Bracket

Shimano SM-BB72-41B, Pressfit 86.5

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Chain

Shimano M6100-12 (12-speed hyperglide chain shared with the Deore/SLX mountain bike tier for robust durability).

Wheel & Tire Details

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Wheelset Name

MERIDA EXPERT CW, 19mm inner width, 30mm height, material: aluminium, Tubeless ready (tubeless tape and valves not included)

Front Wheel Depth Icon

Front Wheel Depth

30mm

Rear Wheel Depth Icon

Rear Wheel Depth

30mm

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Tires

Front: Continental Ultra Sport III, 700x28C, fold, Rear: Continental Ultra Sport III, 700x28C, fold

Tire Type Icon

Tire Type

Clincher

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Max Tire Size: 30 mm

This is the max tire size you can use

Brakes

Disc Brake

Brake Type: Disc Brake

Welcome to the future!

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Brake Mount: Flat Mount

How these disc brakes are mounted

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Brakes

Shimano 105, Hydraulic disc

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Brake Rotors

160 mm front and 160 mm rear

Other Components

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Saddle

MERIDA EXPERT SL, 6% recycled and 23% nature material, V-mount, incl. MERIDA minitool

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Seatpost

MERIDA TEAM CW Aero shape 15mm setback Carbon

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Handlebars

MERIDA EXPERT CW, material: aluminium, 380mm (3XS-XXS-XS-S), 400mm (M-L-XL)

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Bar Tape

MERIDA ROAD Expert