525R

525R Ultegra DI2 2x12 52R01As(M)

The assembly of the product may differ from the photo. Be sure to check out the specifications.*
Bikeradar: Bike of the year 2026

Winner in category 'Race bike'

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Only available with other groupset.
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  • XS
  • S
  • M
  • L
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£6,299.00

525R

With the 525R, we introduce a new performance road bike built around the rider. Its geometry is based on modern bike fitting principles and developed to help cyclists sustain an aerodynamic position without compromising comfort. Together with a lightweight carbon frame and aerodynamic tube profiles, this results in a race bike that translates efficiency into real speed on the road.


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525R

Aero DNA with Merckx identity

The 525R brings together the best of two worlds: the proven aerodynamic expertise of modern aero platforms and the distinctive design DNA of Eddy Merckx. Clean lines, signature tube shapes, and refined styling create a bike that is not only fast, but also visually powerful and authentically expressive.

Aero DNA with Merckx identity

Progressive geometry

The 525R is built around a completely new, progressive geometry that optimizes the rider and bike as one aerodynamic system. Through a combination of an adjusted seat tube angle, longer reach, and a higher head tube, an efficient, aggressive position is created that perfectly meets the demands of modern cycling.
Progressive geometry

Advanced aerodynamics

The 525R builds on proven aerodynamic concepts, featuring a down tube inspired by the latest aero platforms and a diffuser in the fork crown that optimizes airflow. Every detail—from tube shapes to transitions—has been designed to minimize drag. The result is the fastest bike Eddy Merckx has ever developed.

Advanced aerodynamics

Variable seat tube angle

The seat tube angle varies by frame size and becomes steeper as the size increases. This ensures that each rider’s hip angle remains optimal and consistent, regardless of body height. In combination with the adjusted geometry, this results in efficient power transfer and a natural pedaling motion, without the need to readjust your position.

Variable seat tube angle

Versatility without compromise

With clearance for tires up to 34 mm, the 525R offers more versatility than traditional aero bikes. This makes it suitable for a wide range of routes and conditions, without sacrificing speed or performance. A true all-round performance machine for the modern rider.
Versatility without compromise

Dealer Service

Belgian quality, local service, international prestige. That’s Ridley. We provide you with only the best possible service. That’s why we work very closely with local dealers, each an expert near you.

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Dealer Service

Road Bike of the Year

The Eddy Merckx 525R was recognised by leading cycling platform BikeRadar for its stiff, responsive character, fast handling and efficient feel on the road. But above all, it was praised for one thing: pure fun. A road bike that combines sharp handling and efficient performance with an unmistakably enjoyable ride.

Road Bike of the Year

Asymmetric front fork

The asymmetric front fork has been developed to better handle crosswinds and turbulent airflow. By controlling and guiding the airflow, the bike remains more stable in changing conditions. This gives the rider added confidence and control, even at high speeds or on exposed, windy routes.

Asymmetric front fork

Specificaties

Configure your bike
  • Brand Eddy Merckx
  • Model 525R
  • Design code 52R01AS
  • Size M
  • Range Road
  • Frame 525R 7E9/size M/52R01As
  • Fork 525R 7E9 45mm/52R01As
  • Material Carbon
  • Groupset Shimano Ultegra DI2 2x12sp
  • Crank Shimano Ultegra, 12s, 172,5, 52-36
  • Cassette Shimano Ultegra, 12s, 11-30
  • Electric bike No
  • Brake Type Disc
  • Front Derailleur Shimano Ultegra Di2, 2x12, Braze-on
  • Rear Derailleur Shimano Ultegra Di2 12sp
  • Handlebar 4ZA Nimbus Pro 7E8/110-360/400/NIM01 V2-No E-Bike
  • Seatpost 525R 7E9 Seatpost 370mm 0mm offset/UD MATT_EM/Deda
  • Saddle Selle Italia SLR Advan L3, Manganese Rails, Black
  • Front Wheel FORZA Skiron50, DT Swiss 370 hub, Tubeless Ready// 50mm Deep, 23mmm Internal Width
  • Rear Wheel FORZA Skiron50, DT Swiss 370 hub, HG11, Tubeless Ready// 50mm Deep, 23mmm Internal Width
  • Tyres Conti Grand Prix 5000S TLR 28C BL/BL
  • Max Tire Clearance 700c (*) 34 mm
  • Paint Finish Glossy
  • Weight Limit 110 KG (Bike included)
  • EAN 5400928613378
  • Chain KMC chain X12 108 links + link Silver
  • Rotors Shimano RT-CL800 CL 160mm W/Lockring
  • Pedals Not included **
  • Warranty period Lifetime, transferable warranty after registration within 30 days after purchase, with required annual servicing at an authorized dealer.
  • award_url https://www.bikeradar.com/features/tech/bike-of-the-year-2026-race-podium
  • award_title Bikeradar: Bike of the year 2026
  • Shifter Shimano Ultegra Di2 R8170 ShiftDscBrake RightRear
  • Wheeldiameter 28
  • award_subtitle Winner in category 'Race bike'
  • Number of gears 24
  • Primary Basecolour Grey
  • Secondary Basecolour Red

525R

Road - From £6,299.00

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Geometry

What is my size?
XS S M L
A 770 785 805 880
B 480 495 515 540
C 525 545 565 585
D 125 140 160 185
E 74.5 75 75 76
F 73 73 73 73
G 407 407 407 407
H 75 75 75 75
I 964 990 1011 1043
J 698 713 732 756
REACH 377 398 413 437
STACK 535 550 569 593

Check stock

Can't get that new bike soon enough? Here you can find a dealer that has your dream bike in stock.

Beringen, BE