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The latest generation of the Merida Reacto 4000 delivers fundamental changes that further improve its aerodynamics and reduce its weight.
The latest generation of the Merida Reacto 4000 delivers fundamental changes that further improve its aerodynamics and reduce its weight.
Merida

Merida Reacto 4000 Carbon Road Bike in Black/Gunal Grey

£2,400.00
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 28 May 2026 00:00

Hassle free returns

Returns (refunds and exchanges)

If you are unhappy with your item, please let us know. Our Returns Policy gives you 30 days to return or exchange an item bought with a valid receipt. If 30 days have gone by since your purchase, we cannot offer you a refund or exchange.

To be eligible for a refund or exchange, goods must be returned in a re-saleable condition. That means your item must be unused and in the same condition that you received it. The item must be in the original packaging and returned with any accessories, labels and “free gifts” or bonus items.

To complete your refund or exchange, we require a receipt or proof of purchase. Please do not send your purchase back to the manufacturer.

Under the Consumer Rights Act of 2015 you have an early right to reject goods that are unsatisfactory quality, unfit for purpose or not as described, and get a full refund.

But this right is limited to 30 days from the date you took ownership of the goods (this could be the date of purchase or the date the goods were delivered to you - whichever is later).

After the initial 30 days, you can't demand a full refund in the first instance, but you still have the right to a repair or replacement

If you wish to return an item, please
contact us first and we will generate a returns number (GRN).
If the item being returned is found to be faulty we will refund you the initial order carriage cost, and then offer you a full refund or replacement. We will also refund you the carriage cost to return it to us. If it is not faulty, we will offer you a refund or replacement, but not the initial order carriage cost or the cost to return it.

Refunds

Once your returned item 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 14 calendar days. If you paid for standard delivery of the goods, the cost of standard delivery will also be refunded.

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

  • Books or other paper products with obvious signs of use;
  • Any item not in its original condition, which is damaged or missing parts for reasons not due to our error; and
  • Any item that is returned more than 30 days after
Late or missing refunds

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

Sales Items

We do not offer refunds for sale items, unless they are faulty.

Exchange

We only replace items if they are defective or damaged. If you need to exchange an item for the same item, please send us an email at sales@townsendslb.co.uk and we will generate a GRN and email you details to ship your product back to us.

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 they will find out about your return.

Shipping

To return your product, please send us an email at sales@townsendslb.co.uk and we will generate a GRN and email you details to ship your product back to us.

You will be responsible for paying for your own shipping costs for returning your item, unless the item is faulty. 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. If you are shipping an item over £50, you should consider using a trackable shipping service or purchasing shipping insurance as we cannot guarantee that we will receive your returned item.

Right to cancel

In addition to our Returns Policy, under the Consumer Contracts Regulations of 2013, you have the right to cancel your order up to 14 days from the day you receive your goods if you are an online, mail or telephone order customer. You then have a further 14 days from the date you notify the retailer of your cancellation to return the goods. The refund will include any standard delivery charges paid. You will be responsible for the cost of returning a cancelled order to us.

We will refund to you the price paid for the items and (unless you did not pay for delivery) the delivery charges that you paid up to a maximum amount of the cost of our standard delivery option. You will be refunded to your original method of payment within 14 calendar days of our receipt of the cancelled items or, if earlier, within 14 days from the day we receive proof of return from you. If we do not receive the cancelled items back, we may arrange to collect them from you at your cost.

To exercise your right to cancel please send us an email at sales@townsendslb.co.uk.


Your statutory rights are not affected by our Returns Policy. To the extent that any provision in our Returns Policy conflicts with your statutory rights, your statutory rights will prevail and the particular offending provision in our Returns Policy will be deemed inapplicable.

Merida Reacto 4000 Carbon Road Bike in Black/Gunal Grey

Season:2027

Brand:Merida

Code:P-S077

The latest generation of the Merida Reacto 4000 delivers fundamental changes that further improve its aerodynamics, reduce its weight and offer tyre clearance up to 32 mm.

The Reacto 4000 uses exactly the same super-aero frame shape as Merida's top level models. Using the utterly reliable Shimano 105 groupset with hydraulic disc brakes and some choice components, it is ready to ride and race from the box, as well as being a great platform to upgrade as you progress. Featuring Merida's lightweight CF3 carbon frame with race-proven geometry, the Reacto 4000 is far from an entry-level bike, but if you are starting out in road racing or want a fast and well-balanced aero road bike, then it is a perfect choice.

The Reacto 4000 offers impressive comfort due to the generous tyre clearance and the fitted S-FLEX carbon seat post. At the same time, the latest super smooth mechanical 12-speed Shimano 105 groupset keeps shifting and braking in perfect check. This is the ideal aero bike for your first steps into the racing world as well as challenging club rides. Its outstanding aerodynamic performance, reduced weight, sharp handling and super quick acceleration makes it the perfect bike for criterium racers and sprinters. At the same time, the class-leading comfort gives it the ability to play out its aerodynamic advantage also on the cobblestones or the idyllic but potholed littered lanes of your favourite training ride.

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
  • Frame
    REACTO CF3 IV; material: carbon; 700x30C max. wheelsize; 100x12/ 142x12mm axle standard; BB86,5 bottom bracket standard
  • Frame size
    3XS, XXS, XS, S, M, L, XL
  • Color
    MATT MOUNTAIN BLUE (BLACK)
  • Fork
    MERIDA REACTO CF3 IV DISC; material: carbon; 700x30C max. wheelsize
  • Brakes
    Shimano 105; Disc
  • Rotors
    Shimano RT54; 160mm
  • Brake lever
    Shimano 105
  • Headset
    MERIDA TEAM SL; VP-MRBHB (OP203 neck)
  • Handlebar
    MERIDA EXPERT CW; material: aluminium; 380mm (3S-XXS-XS-S); 400mm (M-L) 420mm (XL)
  • Handlebar stem
    MERIDA EXPERT SL 2P II; material: aluminium; -9°° stem angle; 90 mm (XXS/XS), 100 mm (S), 110 mm (M/L), 120 mm (XL)
  • Grip
    MERIDA ROAD EXPERT
  • Derailleur (f)
    Shimano 105
  • Derailleur (r)
    Shimano 105; GS
  • Shifters
    Shimano 105 disc
  • Seat post
    MERIDA TEAM CW; Aero shape; 15mm setback; Carbon
  • Seat clamp
    MERIDA REACTO Aero
  • Saddle
    MERIDA EXPERT SL; 6% recycled and 23% nature material; V-mount; incl. MERIDA minitool
  • Chain
    Shimano M6100-12
  • Crank
    Shimano 105 R7100; 52-36 teeth; 160 mm-3S, 165 mm-XXS/XS, 170 mm-S/M, 172.5 mm-L/XL
  • Freewheel
    Shimano 105 R7101; 11-34 teeth; 12 speed
  • Bottom bracket
    Shimano SM-BB71-41B; Pressfit 86.5
  • Hubs
    Shimano TC500 / Shimano TC500-HL; 100x12mm width front hub; 28 spoke holes; Centerlock; 12x142mm width rear hub; 28 spoke holes; Centerlock
  • Rim
    MERIDA EXPERT CW; 19mm inner width; 30mm height; material: aluminium; Tubeless ready (tubeless tape and valves not included)
  • Tyre front
    Continental Grand Prix; 700x28C; fold *
  • Tyre rear
    Continental Grand Prix; 700x28C; fold *
  • Axles
    MERIDA EXPERT SL; including removable lever; 6/4mm allen key
  • Spokes
    Double Butted Black stainless
  • Approx. weight
    9 kg (weighed at frame size M)
  • Max. weight
    120 kg
  • Geometry: Tyre Sizes
    3XS: 28"; XXS: 28"; XS: 28"; S: 28"; M: 28"; L: 28"; XL: 28"
  • Geometry: ST seat tube [mm]
    3XS: 440; XXS: 470; XS: 500; S: 520; M: 540; L: 560; XL: 590
  • Geometry: TT top tube [mm]
    3XS: 505; XXS: 520; XS: 536; S: 545; M: 560; L: 575; XL: 590
  • Geometry: CS chain stay length [mm]
    3XS: 408; XXS: 408; XS: 408; S: 408; M: 408; L: 408; XL: 408
  • Geometry: HTA head tube angle [°]
    3XS: 70.5; XXS: 70.5; XS: 72; S: 72.5; M: 73.5; L: 73.5; XL: 74
  • Geometry: STA seat tube angle [°]
    3XS: 75.5; XXS: 74.5; XS: 74; S: 74; M: 73.5; L: 73; XL: 73
  • Geometry: BD bottom bracket drop [mm]
    3XS: 70; XXS: 70; XS: 70; S: 66; M: 66; L: 66; XL: 66
  • Geometry: HT head tube [mm]
    3XS: 100; XXS: 105; XS: 112; S: 128; M: 140; L: 155; XL: 176
  • Geometry: FL fork length [mm]
    3XS: 385; XXS: 385; XS: 385; S: 385; M: 385; L: 385; XL: 385
  • Geometry: R reach [mm]
    3XS: 373; XXS: 377; XS: 384; S: 390; M: 395; L: 400; XL: 409
  • Geometry: S stack [mm]
    3XS: 512; XXS: 517; XS: 529; S: 542; M: 557; L: 571; XL: 593
  • Geometry: WB wheel base [mm]
    3XS: 979; XXS: 985; XS: 983; S: 990; M: 990; L: 999; XL: 1010
  • Geometry: SH stand over height [mm]
    3XS: 727; XXS: 746; XS: 771; S: 792; M: 810; L: 826; XL: 853
  • Spare Parts: TUBE
    foam; ID6mm L350mm (No. 1); foam; ID5mm L400mm (No. 2)
  • Spare Parts: EXPANDER
    for fork steerer ID 23.6mm (No. 3)
  • Spare Parts: HEADSET
    FSA NO.55R 1.5"/ACR/STD (TH-MR127, TH-MR168) (No. 4)
  • Spare Parts: TUBE
    woven; L40mm for size XXS/XS (No. 5); woven; L60mm for size S (No. 5); woven; L70mm for size M (No. 5); woven; L90mm for size L (No. 5); woven; L105mm for size XL (No. 5)
  • Spare Parts: DISC COOLER
    front; for FM160/FM180 (No. 6); rear; for FM140/FM160 (No. 28)
  • Spare Parts: SCREW
    M5x0.8 L16mm (No. 7, Torque 6~8 NM); M6x1 L45mm (No. 13, Torque 10~12 NM); M5x0.8 L15mm (No. 17, Torque 3~4 NM); M3x0.5 L10mm (No. 24, Torque 2~4 NM)
  • Spare Parts: THRU AXLE
    EXPERT SL; L=120mm M12x1.5 TL=12mm (No. 8); EXPERT SL; L=162.5mm M12x1.5 TL=12mm (No. 29)
  • Spare Parts: CLAMP
    for saddle rail; left inner part (No. 9); for saddle rail; left outer part (No. 10); for saddle rail; right inner part (No. 11); for saddle rail; right outer part (No. 12); for seatpost (No. 16, Torque 5~6 NM)
  • Spare Parts: COVER
    for S-FLEX seatpost; with LED light (No. 14a); for S-FLEX seatpost, w/o light (No. 14b); for seatpost clamp (No. 15)
  • Spare Parts: MOUNT
    for FD (No. 18)
  • Spare Parts: BLIND PLUG
    for Di2 (No. 19); for mechanical (No. 25)
  • Spare Parts: CABLE PLUG
    for Di2 (No. 20); for Di2 (No. 27)
  • Spare Parts: PROTECTOR
    for chain stay (No. 21)
  • Spare Parts: RD HANGER
    DH-068 for ROAD-RD (No. 22); DH-067 for SHIMANO direct mount (No. 23)
Sizing Information
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