🖤 Aero Speed. Honest Spec. Serious Value.

The 2027 Reacto 4000 delivers the thrill of speed at a price that’s hard to ignore.

Built around the latest CF3 Generation V aerodynamic carbon frame (~1,185g size M) and paired with Shimano 105 and hydraulic disc brakes, the 4000 is the ideal starting point for aspiring racers and performance-focused road riders.

You get the exact same super-aero frame shape as the top-level Reacto models — just paired with smart, reliable components.

The 2027 Merida Reacto 4000 in Silk Black combines the lightweight CF3 aero carbon frame with Shimano 105 hydraulic disc brakes and reliable performance components. The perfect entry point into true aero road performance.

🎨 Colour – Silk Black (Gunmetal Grey)

• Stealth silk black finish

• Subtle gunmetal grey detailing

• Clean and aggressive race aesthetic

• Understated performance look

A timeless, fast-looking colourway that works in all conditions.

🎨 Colour – Silk Black (Gunmetal Grey)

• Stealth silk black finish

• Subtle gunmetal grey detailing

• Clean and aggressive race aesthetic

• Understated performance look

A timeless, fast-looking colourway that works in all conditions.

🏆 Why The Reacto 4000 Is So Important

The latest Reacto platform improves:

• Aerodynamic efficiency

• Frame weight balance

• Tyre clearance up to 32mm

• Comfort and crosswind stability

The CF3 frame uses the exact same aerodynamic shaping and stiffness values as the flagship CF5 models.

That means even at this level, you’re riding genuine aero race DNA.

The 4000 is:

• Race ready straight from the box

• Upgrade-friendly as you progress

• An ideal first aero bike

  ⚙ Key Performance Highlights

  • CF3 Lightweight Carbon Aero Frame (~1,185g size M)

  • Shimano 105 12-Speed Mechanical

  • Hydraulic Disc Brakes

  • Merida Expert CW Wheelset

  • Continental Grand Prix 28mm Tyres

  • Merida Expert CW Handlebar

  • Merida Expert SL Stem

  • S-FLEX Carbon Aero Seatpost

  • Disc Cooler Technology

  • Garmin Carrier + Mount Inserts Included

  • GoPro / Light Mount Included

  • Tyre clearance up to 32mm

  🧠 Technology Breakdown

  CF3 Generation V Carbon Frame

  • Aerodynamically identical to top-tier models

  • Approx. 1,185g (size M)

  • BB86 bottom bracket

  • 12mm thru-axles

  • Fully internal routing

  • Integrated Disc Cooler

  A true aero platform — not just an aero look.

  Shimano 105 with Hydraulic Disc Brakes

  • 12-speed gearing

  • 52/36 chainset

  • 11–34 cassette

  • Reliable, powerful braking

  • Proven durability

  A dependable and race-ready groupset trusted by serious road riders.

  Merida Expert CW Wheelset

  • 19mm internal rim width

  • 30mm rim height

  • Shimano TC500 hubs

  • Centrelock disc

  A solid and durable wheelset ideal for training, racing and upgrading later.

  🎯 Who Is The Reacto 4000 For?

  • Riders stepping into carbon aero bikes

  • Aspiring racers

  • Club riders upgrading from alloy frames

  • Cyclists wanting aero performance at an accessible level

  • Riders who plan to upgrade wheels later

  This is the perfect entry into the Reacto aero family.

  📐 Geometry & Fit

  Race-focused Reacto geometry delivers:

  • Aggressive aero positioning

  • Stable descending

  • Predictable crosswind behaviour

  Available sizes: XS – XL
  Tyre clearance: Up to 32mm

  Professional sizing advice and bike fitting available at The Endurance Hub.

  🏪 Why Buy From The Endurance Hub?

  Buying your first aero bike is a big step.

  ✔ Expert sizing consultation
  ✔ Professional bike fitting options
  ✔ Precision workshop build
  ✔ Finance available
  ✔ Ongoing servicing support
  ✔ A performance-focused team

  We’ll make sure your Reacto 4000 is set up perfectly and ready to ride.