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2022 Merida

REACTO 5000

A carbon frame aero bike with high-end components and shimano ultegra hydraulic disc brakes.
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Manufacturer Price

£2,600
FrameCarbon
ForkCarbon
Wheels700c Aluminum
Drivetrain2 × 11
GroupsetUltegra
BrakesShimano Ultegra Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Rider Position
relaxedaggressive
Terrain
smoothrugged
REACTO 5000
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)

66 km/h

REACTO 5000

64 km/h

Similar Bikes

Highest gear

(descending)

Sizing
XS

151cm – 164cm

SM

159cm – 170cm

MD

165cm – 177cm

LG

171cm – 184cm

🐐 Estimated

Rider Fit Notes
  • 176cm, size S, Just right
  • 196cm, size XL, Just right
  • 85cm, size S, Just right
  • 175cm, size SM, Fits small
Reviews

Summary

The Merida Reacto is a highly regarded aero road bike that combines improved aerodynamics with comfort and versatility, making it suitable for race day and everyday riding. It features a clean, integrated cockpit, revised fork profiling, and a more comfortable ride thanks to updated carbon layup and an S-Flex seatpost. While it excels in speed and handling, some reviews note the wheels as a weak point and the bike can feel overly stiff for longer rides.

Pros
  • Improved aerodynamics

  • More comfortable with revised carbon layup and S-Flex seatpost

  • Clean, integrated cockpit

  • Versatile for both race and everyday riding

  • Good value for money

Cons
  • Wheels often cited as a weak point

  • Can feel excessively rigid on longer rides

  • Front end susceptible to crosswinds

Key Quotes
Merida’s Reacto aero road bike enters its fourth generation with an all-new carbon frame that through subtle updates is more versatile than ever while still improving on aerodynamics.
Bikerumor logoBikerumor
The Reacto 4000 offers a superbike-adjacent experience on a rather more real-world budget.
Cyclist logoCyclist
The Reacto is a genuinely excellent bike.
BikeRadar logoBikeRadar
An aerodynamic jack of all trades!
Gran Fondo Magazine logoGran Fondo Magazine
Great aero bike on a budget – but change the wheels as soon as you can to get the most out of it
road.cc logoroad.cc

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View all reviews

Cyclist
Merida Reacto 4000 review

Jan 2022 · Matthew Loveridge

Merida's most affordable aero bike retains the pro machine's best qualities

Highs
  • Exciting

  • Racy ride

  • Comfortable

  • Super-clean design

Lows
  • Basic wheels

  • Non-tubeless tyres

Read Review

BikeRadar
Merida Reacto 4000 review

Aug 2021 · Matthew Loveridge

The Reacto is a star performer on the road and it’s good enough to justify big upgrades down the line

Highs
  • Superbike-like ride

  • Ultra-modern design

  • Clean cockpit

Lows
  • Better wheels and tyres would really let it shine

Read Review

Cycling Weekly
Merida Reacto Team-E

Sept 2020 · James Bracey

Does the newly launched 4th edition improve on the existing aero focussed race bike?

Highs
  • Translates every watt into forward momentum

  • Razor sharp handling

  • Impressive comfort for an aero bike

Lows
  • Seat clamp rubber cap keeps sliding up the seatpost

Read Review

road.cc
Merida Reacto Disc 5000 2020

Aug 2020 · Stu Kerton

Not the lightest or most comfortable, but if speed is your main goal then the Reacto delivers

Highs
  • Powerful riders will love the stiffness levels

  • Integrated rear seatpost light is a neat touch

Lows
  • Not the lightest aero bike out there

  • Non-series crankset cheapens the look

Read Review

Bikerumor
2021 Merida Reacto aero road bike is faster, more comfortable & more versatile, ready for any race!

Jul 2020 · Cory Benson

Merida's Reacto aero road bike enters gen 4 with an all-new lightweight carbon frameset that is faster than ever, while adding even more versatility...

Read Review

Gran Fondo Magazine
2021 MERIDA REACTO in review – An aerodynamic jack of all trades?

Jul 2020 · By

The brand new 2021 MERIDA REACTO in review. Aerodynamic optimisation, ample tire clearance and comfort!

Highs
  • Very composed

  • Good vibration damping

  • All-round abilities

  • Cable routing and level of integration

Lows
  • Front end susceptible to crosswinds

Read Review

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

Geometry
Specs
Build
Frame

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

BB StandardBB86/BB92, 86.5mm, Press Fit

Tire Clearance30c

Fork

REACTO CF3 IV Disc, material: carbon, 700x30C max. wheelsize

Bottom Bracket

SM-BB71-41B, Pressfit 86.5

Headset

FSA ACR

Stem

FSA SMR ACR, material: aluminium, -6° stem angle, 90 mm-XXS/XS, 100 mm-S, 110 mm-M, 120 mm-L/XL

Handlebar

MERIDA EXPERT CW, material: aluminium, 380mm (XXS), 400mm (XS-S), 420mm (M), 440 (L-XL)

Saddle

MERIDA EXPERT CC, V-mount, incl. MERIDA minitool

Seatpost

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

TypeRigid

Groupset
Rear Derailleur

Shimano Ultegra, GS

Front Derailleur

Shimano Ultegra

Crank

Shimano RS510, 52-36 teeth, 165 mm-XXS/XS, 170 mm-S, 172.5 mm-M, 175 mm-L/XL

Shifters

Shimano Ultegra Disc

Cassette

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

Chain

KMC X11

Brakes

Shimano Ultegra, Hydraulic Disc

TypeShimano Ultegra Hydraulic Disc

Brake Levers

Shimano Ultegra

Wheels
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

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

Rear Hub

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

Tires

Front: Continental Ultra Sport III, 700x25C, fold, Rear: Continental Ultra Sport III, 700x25C, fold

Disc Rotors

Shimano RT64, 160mm

Accessories
Lights

REACTO light seat post + Battery

Rider Notes
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First added 21 September

Last updated 3 June

Not listed for 1,091 days