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Unadulterated aero road speed.
Unadulterated aero road speed.
Merida

Merida Reacto 4000 Road Bike In Grey/Silver

£1,920.99 £2,400.00 20% off
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Hassle free returns

Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Several types of goods are exempt from being returned. Perishable goods such as food, flowers, newspapers or magazines cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases.

Additional non-returnable items:
Gift cards
Downloadable software products
Some health and personal care items

To complete your return, we require a receipt or proof of purchase.

Please do not send your purchase back to the manufacturer.

There are certain situations where only partial refunds are granted: (if applicable)

Book with obvious signs of use
CD, DVD, VHS tape, software, video game, cassette tape, or vinyl record that has been opened.
Any item not in its original condition, is damaged or missing parts for reasons not due to our error.
Any item that is returned more than 30 days after delivery
Refunds (if applicable)

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds (if applicable)

If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted.

If you’ve done all of this and you still have not received your refund yet, please contact us at klcyclerepairs@gmail.com.

Sale items (if applicable)

Only regular priced items may be refunded, unfortunately sale items cannot be refunded.

Exchanges (if applicable)

We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at klcyclerepairs@gmail.com and send your item to: KL Cycles, 9, Laen Court, King's Lynn PE30 5DD, United Kingdom.

Gifts

If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.

If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.

Shipping

To return your product, you should mail your product to: KL Cycles, 9, Laen Court, King's Lynn PE30 5DD, United Kingdom.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

Merida Reacto 4000 Road Bike In Grey/Silver

Season:2025

Brand:Merida

Code:P-Q070

Unadulterated aero road speed.

REACTO 4000 might be the most affordable aero bike in their range but is far from being an entry-level bike. Featuring a lightweight CF3 frame with race-proven geometry, the 4000 offers impressive comfort due to the generous tyre clearance (up to 30 mm tyres) and the fitted S-FLEX carbon seat post. At the same time, the latest super smooth mechanical 12-speed Shimano 105 groupset keeps shifting in braking and perfect check.

The latest version of the REACTO took the cycling press by storm. A long string of test wins, perfect scores and awards confirm their successful symbiosis of the race-proven DNA of the previous model with the latest trends and technologies. From serious racer via enthusiast to the ambitious road rider, the REACTO is a great bike for many people. Its outstanding aerodynamic performance, reduced weight, sharp handling and super quick acceleration makes it the perfect bike for criterium racers and sprinters.

Features:

  • Lightweight CF3 carbon aero frame (approx. 1,150 g - in size M)
  • Shimano 105 12-speed mechanical groupset
  • MERIDA EXPERT SL stem/MERIDA EXPERT CW handlebar combination
  • MERIDA S-FLEX carbon aero post
  • DISC COOLER technology and WIRE PORT cable integration
  • Seat post integrated rear light
Technical Information
  • Model Year
    2025
  • Frame
    REACTOa
    • Frame
      CF3 IV - carbon with the same geometry and aerodynamic profiling as the CF5 IV with a more budget-friendly carbon layup. Tapered headtube, Disc Cooler, BB86 BB standard, 142 x 12mm axle standard. Max tyre size 700 x 30c.
    • Fork
      Reacto CF3 IV Disc; full carbon, tapered steerer. Max tyre size: 700 x 30c - Disc cooler technology.
    • Headset
      Merida Team SL (OP-203 neck).
    • Stem
      Merida Expert SL 2PII; aluminium; -9 degree rise - Length - 90mm (XXS-XS), 100mm (S), 110mm (M-L), 120mm (XL).
    • Handlebar
      Merida Expert CW; aluminium; 380mm (XXS-XS-S); 400mm (M-L-XL).
    • Grip
      Merida Expert.
    • Brake Type
      Hydraulic disc.
    • Brake Lever
      Shimano 105.
    • Brake Calipers
      Front: Shimano 105; Hydraulic disc brake caliper with Shimano RT54; 160mm rotor. Rear: Shimano 105; Hydraulic disc brake caliper with Shimano RT54; 160mm rotor.
    • Tyres
      Front: Continental Ultra Sport III; 700 x 28C; Kevlar bead. Rear: Continental Ultra Sport III; 700 x 28C; Kevlar bead.
    • Wheel Size
      700c.
    • Wheels
      Rims: Merida Expert CW; 19mm inner rim width; 30mm rim depth. Spokes: Double Butted Black stainless. Front Hub: Shimano HB-TC500; 100 x 12mm; 28 spoke; Centerlock. Rear Hub: Shimano FH-TC500-HL; 142 x 12mm; 28 spoke; Centerlock.
    • Speeds
      24.
    • Front Derailleur
      Shimano 105.
    • Rear Derailleur
      Shimano 105; GS.
    • Shift Levers
      Shimano 105 disc.
    • Chain
      Shimano CN-M6100-12.
    • Cassette
      Shimano CS-R7101; 11-34 teeth; 12 speed.
    • Chainset
      Shimano 105; FCR7100, 52-36 tooth chainset; Crank length - 165mm (XXS), 170mm (XS), 172.5mm (S/M/L), 175mm (XL).
    • Bottom Bracket
      SM-BB71-41B, Pressfit 86.5.
    • Saddle
      Merida Expert SL; V-mount; including Merida minitool.
    • Seat Post
      Merida Team CW; Aero shape; 15mm layback; Carbon.
    CF3 IV
  • Material (Frame)
    Carbon
  • Max Wheelsize
    700x30C
  • Axle Standard
    100x12/ 142x12mm
  • Bottom Bracket Standard
    BB86,5
  • Frame Sizes
    XXS, XS, S, M, L, XL
  • Fork
    REACTO CF3 IV DISC
  • Material (Fork)
    Carbon
  • Rim
    MERIDA EXPERT CW
  • Inner Width (Rim)
    19mm
  • Height (Rim)
    30mm
  • Material (Rim)
    Aluminium
  • Tubeless Ready
    Yes (tubeless tape and valves not included)
  • Hubs
    Shimano HB-TC500 / Shimano HB-TC500-HL
  • Front Hub Width
    100x12mm
  • Front Hub Spoke Holes
    28
  • Front Hub Lock Type
    Centerlock
  • Rear Hub Width
    12-142mm
  • Rear Hub Spoke Holes
    28
  • Rear Hub Lock Type
    Centerlock
  • Front Tyre
    Continental Ultra Sport III
  • Front Tyre Size
    700x28C
  • Front Tyre Type
    Fold
  • Rear Tyre
    Continental Ultra Sport III
  • Rear Tyre Size
    700x28C
  • Rear Tyre Type
    Fold
  • Hubs
    MERIDA EXPERT SL
  • Hubs Features
    Including removable lever, 6/4mm allen key
  • Crank
    Shimano 105
  • Crank Teeth
    52-36
  • Crank Length
    165 mm-XXS, 170 mm-XS, 172.5 mm-S/M/L, 175 mm-XL
  • Bottom Bracket
    Shimano SM-BB72-41B
  • Bottom Bracket Type
    Pressfit 86.5
  • Cassette
    Shimano 105 R7101
  • Cassette Teeth
    11-34
  • Cassette Speed
    12 speed
  • Chain
    Shimano M6100-12
  • Shifters
    Shimano 105 disc
  • Front Derailleur
    Shimano 105
  • Rear Derailleur
    Shimano 105 GS
  • Brake Lever
    Shimano 105
  • Brakes
    Shimano 105 Hydraulic disc
  • Rotors
    Shimano RT54
  • Rotor Size
    160mm
  • Headset
    MERIDA TEAM SL
  • Headset Model
    VP-MRBHB (OP203 neck)
  • Stem
    MERIDA EXPERT SL 2PII
  • Stem Material
    Aluminium
  • Stem Angle
    -9°
  • Stem Size
    90 mm-XXS/XS, 100 mm-S, 110 mm-M/L, 120 mm-XL
  • Handlebar
    MERIDA EXPERT CW
  • Handlebar Material
    Aluminium
  • Handlebar Size
    380mm (XXS-XS), 400mm (M-L-XL)
  • Grip
    MERIDA ROAD Expert
  • Seat Post
    MERIDA TEAM CW
  • Seat Post Shape
    Aero shape
  • Seat Post Setback
    15mm
  • Seat Post Material
    Carbon
  • Seat Clamp
    MERIDA REACTO Aero
  • Saddle
    MERIDA EXPERT SL
  • Saddle Material
    6% recycled and 23% nature material
  • Saddle Features
    V-mount, incl. MERIDA minitool
Sizing Information
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