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2019 Merida

REACTO DISC 4000

An aero bike with upper mid-range components and shimano 105 hydraulic disc brakes.

Weight19.1 lbs  
ForkCarbon
Wheels700c Aluminum
Drivetrain2 × 11
Groupset105
BrakesShimano 105 Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Rider Position
relaxedaggressive
Terrain
smoothrugged
REACTO DISC 4000
Other Aero bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

41 mph

REACTO DISC 4000

40 mph

Similar Bikes

Highest gear

(descending)

Reviews

Summary

The Merida Reacto is celebrated for its exceptional speed and aero efficiency, translating every watt into forward momentum with razor-sharp handling and impressive comfort for an aero bike. It offers a stiff, responsive ride with significant speed advantages over segments, though some models may suffer from a firm ride and minor component issues. The Reacto stands out for its thoughtful design, including a well-integrated frame and smart cable routing, making it a strong contender in the aero bike category.

Pros
  • Translates every watt into forward momentum

  • Razor sharp handling

  • Impressive comfort for an aero bike

  • Stiff, light, responsive and lightning fast

  • Well thought out componentry and design

Cons
  • Seat clamp rubber cap issues

  • Rear light reliability

  • Firm ride may not appeal to all

  • Average wheels and tyres on some models

Key Quotes
The sheer unadulterated speed and responsiveness of the machine is intoxicating
Cycling Weekly logoCycling Weekly
Drop into a descent, attack the flats or turn into a headwind and the efficiencies of Merida’s tube shapes become clearly apparent.
Cycling News logoCycling News
The Merida Reacto 6000 is a fast aero road bike with impressively confident handling characteristics. It’s great value, too.
BikeRadar logoBikeRadar

Feedback?

View all reviews

Cycling News
Merida Reacto LTD review

Mar 2020 · Graham Cottingham

One month into our longterm test and the Merida Reacto LTD road bike is already impressing us

Highs
  • Effortless straight-line speed

  • Scything high-speed cornering capabilities

  • Dampening when dealing with large impacts

Lows
  • Doesn't come with tubeless tyres as standard

  • The rear light is far from reliable

Read Review

road.cc
Merida Reacto Disc 4000

Jun 2019 · Stu Kerton

A fast machine with sorted geometry, but its firm ride won't appeal to all

Read Review

Cycling Weekly
Merida Reacto Disc 6000

Dec 2018 · Paul Norman

We’ve ridden the latest version of Merida’s aero bike, complete with disc brakes

Highs
  • Efficient aero frameset

  • Superb groupset

  • Above average adjustability for an aero bike

Lows
  • Some buffeting in crosswinds

  • Quite high geared

  • Spacers under stem can move around

Read Review

BikeRadar
Merida Reacto Disc 6000 review

Jul 2018 · Guy Kesteven

Reacto is exactly the right name for this aggressively responsive aero all-rounder. Buy if you want the aero bike equivalent of a hot hatch rather than a supercharged saloon

Highs
  • Punchy and reactive all-rounder with proper aggressive aero position potential

Lows
  • Edgy handling and firm ride can become a handful in some situations

Read Review

Geometry
Specs
Build
Frame

REACTO DISC CF2

Fork

MERIDA REACTO CF2 disc

Headset

MERIDA REACTO neck, 2191026779

Handlebar

MERIDA Expert CW

Saddle

MERIDA Comp SL

Seatpost

MERIDA Expert CW, Aero shape, 15mm setback, Carbon

TypeRigid

Groupset
Rear Derailleur

Shimano 105, GS

Front Derailleur

Shimano 105

Crank

FSA Gossamer Pro, 52-36 teeth

Shifters

Shimano 105 disc

Cassette

Shimano CS-R7000, 11-30 teeth, 11 speed

Chain

KMC X11

Brakes

Shimano 105, Hydraulic disc

TypeShimano 105 Hydraulic Disc

Brake Levers

Shimano 105 R7000

Wheels
Rims

MERIDA Expert CW, 19mm inner width, 30mm height

Spokes

Double Butted Black stainless

Front Hub

VP CLK170F, 100x12mm width, 28 spoke holes, Centerlock / VP 270SB, 12-142mm width, 28 spoke holes, centerlock

Rear Hub

VP CLK170F, 100x12mm width, 28 spoke holes, Centerlock / VP 270SB, 12-142mm width, 28 spoke holes, centerlock

Tires

Continental Grand Sport Race, 700x25C, fold

Rider Notes
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First added October 11

Last updated October 11

Not listed for 2,787 days