Sunday 29 March 2015

Argon 18 Krypton 105

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The Krypton is the first step into carbon within Canadian Argon 18’s range (the alloy/carbon Radon sits below it). Just because it’s at the lower end of the range, though, doesn’t mean that Argon’s clever designers have skimped on the details.


It’s also worth remembering that the Krypton is in fact a reworking of the range-topping Gallium Pro of a few short seasons ago. For 2015 the firm has also shipped a little weight from the chassis and increased the stiffness through the drivetrain and head tube.



  • Highs: Top quality chassis with confident stable handling

  • Lows: Might be a bit relaxed in steering sharpness for some

  • Buy if: You’re looking for a smooth-running and adaptable road bike with plenty of potential


The Krypton really is all about its frameset. Like all its sibling rides, it's built around Argon's Horizontal Dual System (HDS), which, jargon aside, simply means dividing the frame with a diagonal line from the top of the head tube to the rear dropouts. Anything above the line is designed to flex vertically to aid and add comfort. Anything below is made for maximum stiffness, ensuring power transfer (lack of flex when pedalling) and handling (lack of twisting or bending when steering or leaning into turns).


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A number of threaded spacers screw directly into the head tube


This is all common sense. But Argon has also realised that you can compromise these traits if you then have a big section of unsupported steerer tube above the head tube and under the stem – which often happens with headset spacers when trying to get the fit right for individual riders – as that will compromise all the good work you’ve done designing the frame.


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