Monday | 9.00am - 5.30pm |
Tuesday | 9.00am - 5.30pm |
Wednesday | 9.00am - 5.30pm |
Thursday | 9.00am - 5.30pm |
Friday | 9.00am - 5.30pm |
Saturday | 9.00am - 5.30pm |
Sunday | 10.00am - 4.00pm |
Bank Holidays | 10.00am - 4.00pm |
2025 Merida Reacto 8000 Road Bike in Grey
Click & Collect - Always fast, easy & free
Select Click & Collect at checkout and pick up your order at a convenient location
Monday | 9am - 5.30pm |
Tuesday | 9am - 5.30pm |
Wednesday | 9am - 5.30pm |
Thursday | 9am - 5.30pm |
Friday | 9am - 5.30pm |
Saturday | 9am - 5.30pm |
Sunday | 10am - 4.00pm |
Bank Holidays | 10am - 4.00pm |
The Merida Reacto has always been a class leading aero bike, combining state of the art aerodynamics with rider comfort.
The 4th generation model is more slippery and beautiful than ever, incorporating wider tyres, much neater cockpit cable integration and a series of incremental improvements to boost performance.
In the world of Pro-Tour racing no area can be ignored. Computational Fluid Dynamics (CFD) calculations were used to model performance in a virtual wind tunnel, guiding the changes which offered the most aerodynamic benefit:
Prototypes were wind tunnel tested following the German TOUR magazine standard, including the ‘moving leg dummy’ test. The Reacto CF5 needs just 209 watts effort for 45 km/h speed, 1 watt faster than its predecessor so it's in the leading group of aero road bikes ever tested by TOUR magazine.
Small details such as integrating the front disc cooler behind the fork and the rear disc caliper in the rear triangle and creating new bolt through axles with the thread integrated into the fork dropout minimise drag and improve aerodynamic performance.
A myriad of small improvements over-compensate for the aerodynamic compromises made to give the Reacto bigger tyres, resulting in the perfect package of comfort, aerodynamic, lightweight and style.
A long string of test wins, perfect scores and awards confirm the successful evolution of the race-proven DNA of the previous model with the latest trends and technologies. Cycling Weekly described it as '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'.
All Reacto come with powerful hydraulic disc brakes. Calipers are mounted on the chainstay for better dissipation of braking forces using the flat mount standard for a neat, flush fit. Calipers sit on top of CNC'd aluminium Disc Cooler fins which reduce operating temperatures by up to 35%.
All UK Mainland Bike Deliveries Over £999 - Free Bike orders are sent via TNT/FedEx with estimated delivery within 1 working day after quoted dispatch time (For Scottish Highlands, Northern Ireland, Isle of Man and the Channel Islands deliveries please allow an additional 1-4 working days).Bike orders under £999 will incur a £20 delivery fee.
Free Delivery On Orders Over £50.00 - When you spend more than £50.00 at 99 Bikes deliveries to a UK mainland address will be free (excludes bikes & large items).Certain regions and territories of the UK will incur additional charges, details of which can be found on our delivery page.
Click & Collect Orders -Please be aware Click & Collect orders may take some time to fulfil. We advise not to travel to your chosen store until you have been notified that your order is ready for collection.
We know how eager you'll be to jump on your new bike and hit the dirt or tarmac, so we give you everything you need to get you set up quickly. For full instructions on how you're bike will arrive and what you'll need to do, visit our How Our Bikes Are Built page
Easy Set-Up Instructions
Have your brand spanking new bike ready to ride in less than 15 minutes with our easy to follow guide.
Free Multi-Tool
9 in 1 multi-tool to help you set up and maintain your bike.
Free Pedal Spanner
Attach your pedals with ease using our free tool. Please note pedals are not included with all bikes so please check the specification. You can shop our awesome range of pedals HERE
At 99 Bikes our priority is to ensure that you are highly satisfied with your purchase. In the unlikely event that you aren't, we offer a 30 day online return policy* in which you can receive a full refund. Any item including bikes (with the exception of food) can be returned to us for any reason provided it is received by us in an unused and resalable condition in or with its original packaging which must be undamaged.
Find Out More About Returns >

bottom bracket
|
SM-BB72-41B, Pressfit 86.5
|
brakes
|
Front: Shimano Ultegra; Hydraulic disc brake caliper with Shimano CL800; 160mm rotor Rear: Shimano Ultegra; Hydraulic disc brake caliper with Shimano CL800; 160mm rotor
|
brake levers
|
Shimano Ultegra
|
cassette
|
Shimano CS-R8101; 11-30 teeth; 12 speed
|
chain
|
Shimano CN-M6100-12
|
crankset
|
Shimano Ultegra; 52-36 tooth chainset ; Crank length - 165mm (XXS), 170mm (XS), 172.5mm (S/M/L), 175mm (XL)
|
fork
|
Reacto CF3 IV Disc; full carbon, tapered steerer. Max tyre size: 700 x 30c - Disc cooler technology
|
frame
|
CF3 IV - carbon with the same geometry and aeroydanmic profiling as the CF5 IV with a more budget friendly carbon lay up. Tapered headtube, Disc Cooler, BB86 BB standard,142 x12mm axle standard. Max tyre size 700 x 30c
|
grips
|
Merida Expert
|
handlebars
|
Vision Metron 5D ACR EVO; carbon; 380mm (XXS-XS-S); 400mm (M-L-XL)
|
headset
|
FSA ACR 3MM THINNER NECK
|
material
|
Carbon
|
rear derailleur
|
Shimano Ultegra Di2; RD-R8150
|
seatpost
|
Merida Team CW; Aero shape; 15mm layback; Carbon
|
shifters
|
Shimano Ultegra Di2
|
tyres
|
Front: Continental Grand Prix 5000S TR; 700 x 28c; Kevlar bead; tubeless ready Rear: Continental Grand Prix 5000S TR; 700 x 28C; Kevlar bead; tubeless ready
|
wheelset
|
Rims: Reynolds AR 60 DB, 21mm inner rim width; 60mm rim depth; Carbon Spokes: Part of wheelset Front Hub: Part of wheelset - Reynolds AR 60 DB, 100 x 12mm; Centerlock Rear Hub: Reynolds AR 60 DB, 142 x 12mm; Centerlock
|
Please note the following size guides are a general overview and represent a rough guide to bike sizing. Each bike may deviate from these figures.
Road Bikes
Size | XXS | XS | S | M | L | XL | XXL |
Height (cm) | 155 - 160 | 160 - 166 | 167 - 172 | 173 - 179 | 180 - 185 | 186 - 191 | 192 - 207 |
Mountain Bikes
Size | XS | S | M | L | XL |
Height (cm) | 145 - 160 | 150 - 165 | 160 - 175 | 170 - 185 | 180 - 200 |
Hybrid & Urban Bikes
Size | XS | S | M | L | XL |
Height (cm) | 150 - 160 | 160 - 170 | 170 - 180 | 180 - 190 | 190 - 200 |