Home » Uncategorized » Braňo’s Stealth Bomber Style X9 Bicycle

Braňo’s Stealth Bomber Style X9 Bicycle

Your ads will be inserted here by

Easy Plugin for AdSense.

Please go to the plugin admin page to
Paste your ad code OR
Suppress this ad slot.

The head-turner at the Berlin Bicycle Show (Berliner Fahrradshau) earlier this month was a “stealth bomber”.

No, the organizers didn’t allow airplanes as last-minute entries into the bicycle show – it was the X-9 Nighthawk, a one-off design marvel with fighter plane looks that materialized from the drawing board of Slovakian mechanical engineer Braňo Mereš.

Though the X-9 won admirers through its rather mean look – the pitch black frame with angles straight from the stealth bomber – the real design breakthrough was in the materials used to make the one-off innovative frame.  Mereš, who has previously used materials like strips of titanium, epoxy resin composite and carbon fiber rods; took a new approach while designing the frame of the X-9.

It is made from sandwiched panels which have a core made of Aramid and carbon fibre skins.

Yes, you heard me right. Aramid! The bicycle must be built like a tank!

It is the same heat-resistant synthetic fibre used for making body armour. The panels for the Nighthawk are made of an aramid-derived material laid in an open honeycomb pattern, wedding the two main design parameters – strength and light weight – quite perfectly.

Mereš used a water jet to cut the panels according to his measured design requirements before connecting them to each other. Then he used laminated carbon fibre sheets over the honeycomb and the result is a single-speed frame which weighs 1.4 kilograms.

Mereš insists that the goal of the experiment was to build a first bicycle frame using honeycomb sandwich panels. Honeycomb frames are already used but not panels sandwiched to make things tougher.

The material is widely used in aircraft industry and gives good stiffness to weight ratio compared to carbon composites. The engineer insists that weight can be further brought down using lighter epoxies.

Mereš did go back to carbon for his fork, stem and handlebars though he stuck with the stealth fighter angles while designing them specifically for the X-9. The saddle is also custom made while he used off-the-shelf wheels, disc brakes and a beltdrive to complete the sexy bike.

About Leslie Pulipa

Check Also


Try Oculus Rift And Wii To Roam Around On The Back To The Future Hoverboard

Check out how you can fly in virtual space by using an Oculus Rift and a Wii Balance Board.


Amazon Appstore for Android Holiday Deals, Including Free Apps

There are tons of deals from the Amazon Appstore that will be offered starting now and throughout the holiday shopping season. They say that they will have "hundreds of titles that are eitehr free... or available between 50-90% off" the regular price.


Black Friday: Google Play Store Apps, Games and Content on Sale All Weekend

Case in point, if you head over to the Google Play Store right now, you'll find that Google is celebrating all Cyber Weekend with discounts on all sorts of content. This includes many popular apps and games


Black Friday Deal: Samsung Galaxy Tab 3 10.1-Inch for $100 Off

Your ads will be inserted here byEasy Plugin for AdSense.Please go to the plugin admin ...


Arduino Co-Creator Releases Plans for $200 DIY Mobile Phone

Mellis was one of the people who came up with the now hugely popular Arduino platform and now he has come up with plans for people to build their own cell phone for about $200 in parts.


No Discounts for Apple Black Friday, Just Free Gift Cards

If you were hoping to save yourself some cash as you brave the Black Friday shopping crowds, you'll want to go somewhere other than the official Apple Stores.