Our REACTO 4000 might be the most affordable aero bike in our range but is far from being an entry-level bike. Featuring our 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, a super smooth and reliable Shimano 105 groupset keeps shifting in braking and perfect check. This is the ideal aero bike for your first steps into the racing world as well as challenging club rides.
Newly launched in 2021, the latest version of the REACTO took the cycling press by storm. A long string of test wins, perfect scores and awards confirm our successful symbiosis of the race-proven DNA of the previous model with the latest trends and technologies. Cycling Weekly calls it 'without doubt one of the most complete bikes available on the market', Cyclingnews 'an utterly brilliant and faultless machine' and Cycling Plus were 'hugely impressed'.
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. 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 frameset
- Shimano 105 12-speed mechanical groupset
- FSA SMR ACR stem with Merida Expert CW handlebar
- Merida S-Flex carbon aero seatpost
- Disc Cooler technology and Wire Port cable integration
- Seatpost integrated rear light
Product Code | P095 |
---|---|
Brand | Merida |
Gender | Unisex |
Frame | Reacto CF3 IV, material: carbon, 700x30C max. wheelsize, 100x12/ 142x12mm axle standard, BB86,5 bottom bracket standard |
Fork | Reacto CF3 IV Disc, material: carbon, 700x30C max. wheelsize |
Shifters | Shimano 105 Disc |
Derailleur (Front) | Shimano 105 |
Derailleur (Rear) | Shimano 105 |
Brakes | Shimano 105 hydraulic brakes |
Crankset | Shimano 105, 52-36 teeth, 165 mm-XXS/XS, 170 mm-S, 172.5 mm-M, 175 mm-L/XL |
Cassette | Shimano 105 11-34t, 12spd |
Chain | Shimano CN-M6100-12 |
Hub Front | Joytech D981SB; 100x12mm; 28 spokes; Centerlock with Merida Expert TR axle |
Hub Rear | Joytech D872SB; 142x12mm; 28 spokes; Centerlock with Merida Expert SL axle including removable 6/4mm allen key |
Rims | Merida Expert CW,19mm inner width, 30mm height material: aluminium Tubeless ready (tubeless tape and valves not included) |
Tyres | Continental Ultra Sport III, 700x28c |
Handlebar | Merida Expert CW, material: aluminium, 380mm (XXS), 400mm (XS-S), 420mm (M), 440 (L-XL) |
Stem | FSA ACR SMR, material: aluminium, -6° stem angle, 90mm-XXS/XS, 100mm-S, 110mm-M, 120mm-L/XL |
Headset | FSA ACR |
Saddle | Merida Expert SL |
Seatpost | Merida Team CW; Aero shape; 15mm lay back; Carbon with integrated rear light |
Pedal | Pedals not included with this bike but can be purchased separately here |
Wheel Size | 700c |
Number of Gears | 24 |
Ready to ride
Every bike from Start Fitness is fully checked & assembled before despatch and will arrive, almost, ready to ride. Each bike is assembled by one of our CyTech accredited mechanics and then packed into one of our custom boxes.
*This process has a lead time of 3-5 working days.
Unfortunately during peak times this may be slightly delayed. We will however, aim to despatch your bike as quickly as possible. Minimal assembly, with basic tools, is required before you can ride. Assembly tools are not usually included.
Making sure you are home
Once fully checked and boxed, we will contact you to arrange a suitable delivery date when you will be home to take delivery. Our bikes are despatched with a premium delivery service which usually delivers next working day (excludes weekends & bank holidays) for mainland UK orders, it may take slightly longer for some areas, Northern Ireland, Channel Islands and outlying Scottish areas. European bike deliveries usually take approximately one week.
Taking Delivery
Any mechanical or cosmetic issues need to be reported to us within one week of the delivery date. If you do not plan on using the bike straight away, we advise that you remove it from the box and check it over ASAP as we cannot be responsible for any reported issues (other than standard warranty issues) later than one week from the date that the bicycle was delivered.
First Service
After a few weeks of riding (we recommend around 6-8 weeks, regardless of how much the bike has been used), a new bike will need a service to make final adjustments and to re-check all nuts and bolts. This is necessary as the bike goes through a ‘bedding in’ phase, after which, final adjustment may be necessary. We recommend that this is carried out by a CyTech qualified mechanic.
It is important to have these checks carried out to prevent any avoidable problems which may not be covered by warranty and to ensure the smooth running of your bicycle. If you’re local to us, we’re able to offer this first service free of charge* at our Newcastle store (NE1 6JE). You’ll just need to call our workshop on 0191 917 3825 to book your service in, and don’t forget to bring your proof of purchase when you drop the bike off with us.
If you’ve had the bike delivered, it will be your responsibility to ensure a first service is carried out at a trusted bike shop local to you, preferably by a Cytech certified mechanic. Start Fitness are unfortunately not able to cover any costs associated with this service if carried out by another store.
*Please note that this complimentary check-over does not include any labour to replace worn parts or to fit new accessories. All bikes should be delivered to us in a clean and serviceable condition, or a £15 cleaning charge will be payable.
Bike Servicing
Bicycles need to be serviced regularly, as a guideline we would advise on at least one full service per year and/or a standard service twice a year. If the bike is used regularly in adverse conditions, more regular servicing may be required.
WE ACCEPT VOUCHERS FROM ALL MAJOR PROVIDERS
Click here to find out more











Request a Quote
Still not sure? Need some advice?
Book a call with one of our experts to get more information on this product.
{formbuilder:56353}
- Choosing a selection results in a full page refresh.
- Opens in a new window.