525R
525R & Fork 52R01As(M)
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.
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.
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.
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.
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.
FIND DEALERS
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.
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.
Specificaties
- 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 Frameset
- Electric bike No
- Brake Type Disc
- Handlebar 4ZA Nimbus Pro 7E8/110-360/400/NIM01 V2-No E-Bike
- Seatpost 525R 7E9 Seatpost 370mm 0mm offset/UD MATT_EM/Deda
- Max Tire Clearance 700c (*) 34 mm
- Paint Finish Glossy
- Weight Limit 110 KG (Bike included)
- EAN 5400928824811
- 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
- faq_folderid 63000239099
- Wheeldiameter 28
- award_subtitle Winner in category 'Race bike'
- Number of gears 0
- Primary Basecolour Grey
- Secondary Basecolour Red
525R
Road - From CHF 6,999.00
Read more about 525RGeometry
| 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 |
Help & support
How can we help?
The frame needs a 12mm TA with a thread of 1mm (article code QRET124ZA046)
The 525R uses the SRAM Universal Derailleur Hanger (UDH). This means you will find easily a replacement hanger wherever you are as it is a standardised hanger (article code HANUDHSRA001)
The tire cleance of the 525R is 35mm, actual width. This means the actual width of the tire on the rim. This can be different from the size mentionned on the tire.
The maximum torque to fix the seatpost clamp is 4Nm, like mentionned on the clamp
We use a BB86 press-fit bottom bracket standard on the 525R.
The integrated seatpost clamp (Ridley article code SPCAER4ZA012) is designed for the aero seatpost of the 525R.
The 525R is design around an integrated cockpit to have most aero setup, but you can use a traditionnal stem and handlebar. You will need a transition spacer SPAAER4ZA012 to use round spacers and a traditionnal stem.
The 525R has a steeper seattube angle of 75° in size M, compared to 73° on the previous generation 525. The seattube angle is also steeper going from small sizes to larger sizes so also taller riders can benefit from this central position. This steeper seattube angle follows the latest trend we see in profesionnal cycling where riders want to ride in a more forward position on the bike, closer to the bottom bracket. This position allows the rider to push in a more efficient way on the pedals by a more open hip angle. From a geometry perspective, we have kept the actual top tube length the same, compared to the previous Noah so the distance between the saddle and cockpit remains the same.
Check stock
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