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Ridley Noah Pro 9000 Complete Road Bike

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Item # RID000B

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Item # RID000B


With professional team riders constantly testing Ridley's aerodynamic bike designs, its engineers are able to fine tune their prototypes until they're as fast and efficient as possible. The Noah Pro is the perfect example of what results when these testing efforts come full circle, as it was developed with a combination of Ridley's refined FAST Concept technology and real-world race feedback. And the resulting bike is one of the most aerodynamic race bikes on the planet.

While most bicycle manufacturers would be content to rely on tubes alone for an aerodynamic advantage, Ridley's research and development on its flagship Noah go far beyond tube shapes and bike geometries. The latest generation of Ridley's groundbreaking Noah shares the same proven aerodynamic features as its earlier iterations — including an aerodynamic down tube, internal cable routing, an aero seat tube that extends into an integrated seatmast, and a deep rear wheel cut-out. What sets the Noah apart from other aero bikes is its use of Ridley's FAST Concept technology. As we all know by now, drag increases exponentially with airspeed, which means small changes to reduce your drag will have a disproportionately positive impact as your speed increases. FAST Concept technology focuses on several specific issues of bicycle aerodynamics. According to Ridley, your wheels produce eight times more drag where they pass through your fork due to the turbulence of the colliding air masses there. The Noah Pro was built to minimize this drag with its use of long, slotted airfoils built into the fork legs, referred to as "F-Splitfork" by Ridley. These airfoils redirect oncoming air away from the turbulent areas near the front wheel.

The story of the Noah Pro doesn't stop at F-Splitfork. Ridley used oil mapping in the wind tunnel to isolate spots of turbulent airflow. And where structural limitations kept it from re-sculpting the frame, Ridley applied a textured surface treatment for boundary layer control. Ridley calls it "F-Surface," also affectionately referred to as "aero paint." These thin strips of texture are amazing: they purposefully trigger a known amount of turbulence that re-energizes lost boundary layers, ultimately re-establishing laminar flow and minimizing drag. In other words, they carefully create an airflow mess in order to make an unprecedented level of cleanliness. Airflow control is why you see vortex generators on aircraft wings, and why you see dimples on golf balls. And it's exactly what Ridley does with its F-Surface paint.

For the build, Ridley spec'd the Noah Pro with a full Shimano Dura-Ace 9000 11-speed groupset. The crankset is the Dura-Ace FC-9000 50/34t compact, paired with a 12-25t cassette out back. For the cockpit, the build features a 4ZA Cirrus handlebar and 4ZA Cirrus Pro stem. Topping the integrated post is a Prologo Zero II saddle, and in terms of wheels, the bike rolls on a pair of Reynolds Assault clinchers that've been cased in Continental GP 4000 tires.

The Ridley Noah Pro 9000 Complete Road Bike is available in four sizes from X-Small to Large and in the color Black/white/green. Given its semi-compact geometry, we strongly suggest that you focus on the effective top tube length as you make a determination of the proper size.

Tech Specs

Frame Material:
unidirectional carbon fiber
Fork Material:
unidirectional carbon fiber
yes, FSA integrated
Shimano Dura-Ace ST-9000
Front Derailleur:
Shimano Dura-Ace FD-9000
Rear Derailleur:
Shimano Dura-Ace RD-9000
50/34 t
Bottom Bracket:
PressFit 30
not included
12-25 t
Shimano Dura-Ace CN-9000
Brake Calipers:
Shimano Dura-Ace BR-9000
4ZA Cirrus
4ZA Cirrus Pro
Prologo Zero II
Reynolds Assault
Continental GP4000
Recommended Use:
road cycling and racing
Manufacturer Warranty:
5 years on frame

sizing chart

Bike size by rider height


Geometry chart


Geometry Chart



Seat Tube


Seat Tube


Effective Top Tube






Stand Over

Head Tube


Head Tube Angle


Seat Tube Angle


Bottom Bracket Drop




XS 44.0cm 68.0cm 52.5cm 53.0cm 37.5cm 74.0cm 13.0cm 72.0o 74.0o 6.6cm 40.5cm 97.4cm
S 47.0cm 71.0cm 54.5cm 54.5cm 38.5cm 75.0cm 14.5cm 73.0o 73.5o 6.6cm 40.5cm 97.7cm
M 50.0cm 74.0cm 56.5cm 57.5cm 39.0cm 78.0cm 17.5cm 73.5o 73.0o 6.6cm 40.5cm 99.0cm
L 53.0cm 77.0cm 58.5cm 60.2cm 40.0cm 81.0cm 20.5cm 73.5o 72.5o 6.3cm 40.8cm 100.3cm
XL 56.0cm 80.0cm 60.0cm 62.5cm 40.5cm 84.0cm 23.0cm 74.0o 72.5o 6.3cm 40.8cm 101.2cm

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Here's what others have to say...

Unanswered Question

This is not a pro is just a Noah frame

This is not a pro is just a Noah frame

I have a 48 cm cervelo 2.5 how does the...

I have a 48 cm cervelo 2.5 how does the xs correlate to it I still had to put on a shorter stem and spun the seat support forward and seat 5,4, when you state reach arm pit to finger tip?

Best AnswerResponded on

Sorry, but the XS has sold out. I would be happy to discuss another in stock option. Feel free to contact me directly.