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Mathematically, your odds in a solo breakaway aren't particularly favorable. The Ridley Noah Road Bike Frame is a carefully calculated equation designed to improve those odds. Incorporating a number of Ridley's FAST Concept technologies, the Noah has been tested to reduce the required power input by up to 15 watts in a 50km/h (just over 30 mp/h) breakaway. The less power that you need to maintain your breakaway speeds, the greater your ability is to stay away from the field. That makes your odds for the top spot on the podium a little bit better.

And 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 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 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 purposely 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.

The Ridley Noah Road Bike Frame 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. The Noah requires a PressFit BB30-compatible bottom bracket and a braze-on front derailleur. It includes a 120 gram seat clamp assembly that allows an 18mm range in saddle height and comes with 1mm micro-spacers for small adjustments. Ridley also provides an aftermarket clamp that provides 40mm of height adjustment.

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suck frameset, stay away; Regreted!!

    What a piece of trash; chainstay cracked after just 11 months riding. Absolutely no hitting, no crash at all, Ridley failed the warranty claimed. The chainsty failed to function. This obvious a result of poor quality manufacture.
    Refuse to admit the defected production. Don't trust Ridley's policy. Please stay away from Ridley.

    suck frameset, stay away; Regreted!!

    The NOAH is absolutely Awesome!!

    • Familiarity: I've put it through the wringer

    I've had my NOAH for 2 years now - the bike has not changed much. This NOAH is FAST and comfortable for Centuries and great for riding in the Wind! I have confidence climbing and sprinting on this bike. This bike is very stiff and cut for aero around the wheels - choose your carbon rims carefully for clearance at the forks. I have a 25mm wide rim and I have very little clearance as fork tapers. This is an Awesome bike and you can really feel the difference.

    My 2nd Noah

    • Familiarity: I've put it through the wringer

    Crashed and cracked my frame last year and bought another one with no regrets. Using Ultegra di2 with Reynolds 46 carbon hoops. Frame is stiff but transfers all the power. I wouldn't use this for centurys. I use my old carbon Trek low end bike which is real comfy. Just love it.

    Yes, not enough. Noah towards more for racing and can feel pretty hard on seat. I'm using my original Ultegra tubeless rims with Huthchinson 700x25 tubeless tires and took off the edge which makes it more comfy. Also a comfy seat will help compared to the original one that came with my Noah. The aerodynamic frame feels fast on flats and downhills.

    Awesome bike...

    • Familiarity: I've put it through the wringer

    I've had mine for about 6 months... great bike. Fast, excellent power transfer and comfortable. The ISP is a bit of a pain to get setup (measure twice, cut once) - but that's only initially. I've ridden two double centuries on it - and its quite comfortable (unlike some aero road bikes)... and lets just be honest - it looks awesome.

    The best bike I own

    • Familiarity: I've put it through the wringer

    I have had a Noah now for about 3 yrs and absolutely love it! This is a very stiff and responsive bike. You will feel your pedal stroke transfer to your wheels. The price here is also great. I am 5'8" and use a medium with shorter stem. This bike is not for touring.

    Unanswered Question

    Advice needed please. I had a small crash on my Ridley Noah (2012) last weekend. After the cycle I fully inspected bike to find a few small hairline cracks appear on the bottom of the air flow cuts on front right hand of the fork. It seems to be gone both sides of the right hand bar of fork. Would I be aswell to get the bike shop to start chipping away at paint to potentially find nothing or is a common thing with Ridley bikes to have a weakness in some parts of their paint. Any help would be great as I love this bike

    is size medium a 48?

    is size medium a 48?