Merida Reacto 4000 2027 Aero Road Bicycle
Carbon Aero Speed with 105 Control
- CF3 Carbon Aero Frame
- Shimano 105 Groupset
- Merida Expert Cockpit
Merida Reacto 4000 2027 Aero Road Bicycle - Mineral Gold (Black) / S is backordered and will ship as soon as it is back in stock.
Pickup available at The Bike Affair, Hyderabad
Pairs well with
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NOTE:Ā If your body height is between two frame sizes, the following rules of thumb apply:
- For a sporty riding, you better choose the smaller frame size
- If you want to ride in a more comfortable position, choose a larger frame size
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| Frame Size | XXXS | XXS | XS | S | M | L | XL |
| Height (In cm) | 148-157 | 153-162 | 158-167 | 163-172 | 168-182 | 178-187 | >183 |
Merida Reacto 4000 2027 Aero Road Bicycle - Mineral Gold (Black) / S is backordered and will ship as soon as it is back in stock.
The Merida Reacto 4000 2027 is a carbon aero road bike for riders who want a fast, race-ready frame with mechanical Shimano 105 shifting. It uses Merida's Reacto CF3 V carbon frame (approx. 1,185 g in size M), which shares the aero frame shape of the top Reacto models and clears 32 mm tyres. The Shimano 105 12-speed drivetrain pairs 52-36T chainrings with an 11-34T cassette and hydraulic disc brakes on 160 mm rotors. Wheels are Merida Expert CW aluminium rims, 30 mm deep and tubeless ready, fitted with Continental Grand Prix 28 mm tyres.
The Merida Reacto 4000 Aero Road Bicycle is built for riders who want the thrill of speed without stepping into the highest price range. It brings serious aero road performance to aspiring riders and racers looking for a fast, modern platform.
CF3 Carbon Aero Frame: The Reacto 4000 uses Meridaās latest CF3 carbon frame with the same super-aero frame shape seen on top-level models. This gives the bike a strong aerodynamic foundation while keeping the frame light, efficient and ready for fast riding.
Shimano 105 Reliability: Equipped with the reliable Shimano 105 groupset and hydraulic disc brakes, the bike offers dependable shifting and confident braking. This makes it ready for training, fast group rides and race-day use straight out of the box.
Speed with Comfort and Control: The latest Reacto platform improves aerodynamics, reduces weight and offers tyre clearance up to 32 mm. This balance helps riders enjoy speed while maintaining the comfort and control needed for real-world road conditions.
Merida Reacto 4000 2027 Aero Road Bicycle is a strong entry point into Meridaās aero bike range, offering high-value performance today and a great platform to upgrade as you progress.
Specifications
Specifications
| Frame | Reacto CF3 V [Material: Carbon, 700x32C Max. Wheelsize, 100x12 / 142x12 mm Axle Standard, BB86.5 Bottom Bracket Standard] |
|---|---|
| Fork | Merida Reacto CF3 V Disc [Material: Carbon, 700x32C Max. Wheelsize] |
| Brakes | Shimano 105 Disc |
| Rotors | Shimano RT54 [Size: 160 mm] |
| Brake Lever | Shimano 105 |
| Headset | Merida Team SL [RCT 608 Neck] |
| Handlebar | Merida Expert CW [Material: Aluminium, 380 mm: 3S-XXS-XS-S, 400 mm: M-L, 420 mm: XL] |
| Handlebar Stem | Merida Expert SL 2PII [Material: Aluminium, Stem Angle: -9°, 90 mm: 3S/XXS/XS, 100 mm: S, 110 mm: M/L, 120 mm: XL] |
| Grip | Merida Road Expert |
| Front Derailleur | Shimano 105 |
| Rear Derailleur | Shimano 105 GS |
| Shifters | Shimano 105 Disc |
| Seat Post | Merida Reacto V S-Flex [Aero Shape, Setback: 0 mm, Material: Carbon] |
| Seat Clamp | Merida Reacto V |
|---|---|
| Saddle | Prologo Akero RS PAS T2.0 [V-Mount Adapter, Includes Merida Minitool] |
| Chain | Shimano M6100-12 |
| Crank | Shimano 105 R7100 [Teeth: 52-36, 160 mm: 3S, 165 mm: XXS/XS, 170 mm: S/M, 172.5 mm: L/XL] |
| Freewheel | Shimano 105 R7101 [Teeth: 11-34, Speed: 12 Speed] |
| Bottom Bracket | Shimano SM-BB71-41B [Pressfit 86.5] |
| Hubs | Shimano HB-TC500 / Shimano HB-TC500-HL [Front Hub Width: 100x12 mm, Rear Hub Width: 142x12 mm, Spoke Holes: 28H, Brake Interface: Centerlock] |
| Rim | Merida Expert CW [Inner Width: 19 mm, Height: 30 mm, Material: Aluminium, Tubeless Ready: Yes, Tubeless Tape and Valves not included] |
| Tyre (Front & Rear) | Continental Grand Prix [Size: 700x28C, Foldable] |
| Axles | Merida Expert SL [Including Removable Lever, 6/4 mm Allen Key] |
| Spokes | Double Butted Black Stainless |
| Color | Mineral Gold (Black), Silk Black (Gunmetal Grey) |
| Frame Size | 3XS, XXS, XS, S, M, L, XL |
Features
Features
Fit and sizing
Fit and sizing
Warranty and support
Warranty and support
Covered by the manufacturer's warranty. Warranty claims go through us and we deal with the brand for you.
Questions after delivery? Ask TBA Guide or WhatsApp us.
Shipping and returns
Shipping and returns
We ship across India. Shipping is free on orders above ā¹2,000 and ā¹99 below that. Cash on delivery is available on orders up to ā¹20,000, with a COD charge that depends on the order value. For a delivery estimate, enter your pincode in the box above the add-to-cart button: it shows the courier's own estimate for your address, not a promised date. If a parcel is held up we chase the courier until it is delivered. Full shipping policy
Returns can be started within 7 days of delivery on unused items in their original condition with all tags and packaging. Apparel, helmets, gloves and similar items are returnable; wetsuits and products discounted by more than 5% are not. Compatibility questions are not grounds for a return unless our listing was wrong, so ask us before you order if you are unsure. Return shipping is arranged by you; on an accepted return you can choose an exchange, store credit or a refund after shipping and transaction charges. Orders can be cancelled only until they are processed. Full return and refund policy
- Free shipping over ā¹2,000Delivered across India
- 100% genuineAuthorised dealer, manufacturer warranty
- Cash on deliveryOn orders up to ā¹20,000
- Secure checkoutUPI, cards and net banking
Frequently Asked Questions
What is the Merida Reacto 4000 2027 and who is it for?
What is the Merida Reacto 4000 2027 and who is it for?
The Merida Reacto 4000 2027 is the mechanical Shimano 105 model in Merida's latest Reacto aero road range, built on the same Reacto CF3 V carbon frame as the Reacto 6000 and 8000, and it suits riders moving up to a proper aero race bike for fast group rides, training blocks and amateur races. It is also a sound base to upgrade with carbon wheels later.
What gearing does the Merida Reacto 4000 have?
What gearing does the Merida Reacto 4000 have?
The Reacto 4000 uses a Shimano 105 R7100 crankset with 52-36T chainrings and a Shimano 105 R7101 11-34T 12-speed cassette, shifted by a mechanical 105 GS rear derailleur, and its 36x34 lowest gear is close to a 1:1 ratio for long or steep climbs. The 52x11 top gear covers fast descents and sprints.
Merida Reacto 4000 vs Reacto 6000: what is the difference?
Merida Reacto 4000 vs Reacto 6000: what is the difference?
Both bikes share the Reacto CF3 V carbon frame and 52-36T, 11-34T gearing, but the Reacto 6000 adds Shimano 105 Di2 electronic shifting, a one-piece Merida Team SL carbon cockpit and Vision SC 60 carbon wheels, while the Reacto 4000 uses mechanical Shimano 105, a two-piece aluminium bar and stem, and 30 mm deep aluminium rims.
Which size Merida Reacto 4000 should I buy?
Which size Merida Reacto 4000 should I buy?
Merida's geometry for the Reacto 4000 runs from XXS to XL, and parts scale with frame size: 165 mm cranks on XXS and XS, 170 mm on S and M, 172.5 mm on L and XL, plus 380 to 420 mm handlebars and 90 to 120 mm stems. Match your current bike's reach and stack to the size chart on this page rather than choosing by height alone.
Is the Merida Reacto 4000 tubeless ready?
Is the Merida Reacto 4000 tubeless ready?
The Reacto 4000's Merida Expert CW rims (19 mm inner width, 30 mm deep) are tubeless ready, but Merida states that tubeless tape and valves are not included, and the stock Continental Grand Prix tyres are not listed as tubeless ready. Going tubeless needs TR tyres, tape, valves and sealant. A Merida minitool comes with the saddle.

