Posts in the category Prototype

EB15: NAILD reinvents front suspension stem-and-fork system for road bikes

NAILD r3act stem and fork front suspension for commuter cyclocross road and gravel bicycles

Imagine if you could all but erase not just bumps, but vibration, too, from your commuter, road, cyclocross or gravel bike. That’s the promise of the new NAILD R3ACT front suspension.

It’s named for Newton’s third law that says every action has an equal and opposite reaction, and this particular prototype is made for flat bar road bikes, but designer Darrell Voss has bigger plans for it. It’s not really a stem suspension or a fork suspension, it’s both, and it requires a rider’s weight to be on the handlebars for it to work.

Voss explains that in the auto industry, they want about 10x the weight of the wheel:tire combo in the structure immediately surrounding it in order to properly deaden vibrations before they reach the driver. On a bike, that ratio isn’t practical, so he faked it by isolating the handlebars from the fork via a leveraged connection between the stem and the steerer tube. Press down on the frame and it barely moves. Put your weight on the bars and it absorbs bumps smoothly and easily…


Eurobike Coverage Review – Week #2: Chosen goes for 12 Speeds, Cippollini Gets Aero, DT Swiss & HED Get Wider and MORE!

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Welcome back to Eurobike coverage part deux! With more categories to cover than ever, this year’s show was huge and kept us on our toes more than ever. Pour yourself a well deserved scotch, kick your feet up, and travel into this week’s coverage of Eurobike 2015.

And in case you missed Week 1’s exciting coverage, check it out!


Shutter Precision and Cycle Monkey Power Up Fat Bikes with 150mm Dynamo hub


Shutter Precision, who has been producing a broad range of affordable, high quality dynamo hubs since 2009, has joined forces with Cycle Monkey to develop a 150mm fat bike dynomo hub. Recognizing the growing trend of fat bikes along with the increasing number of people choosing to use their adaptability to veer well off the beaten path, Cycle Monkey and Shutter Precision used their combined knowledge to come up with a solution.

Charge past the break for more…


Eurobike Coverage Review – Week #1: SRAM Red Wireless, ENVE’s Crazy Light Hubs, Magura’s Wireless Dropper, BFO’s H2O Brakes & more!

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Welcome to Eurobike! We went and did all the walking for you, so step right in, grab a Dunkle, Tripel or Weizeneisbock, and review our first week’s worth of Eurobike 2015 coverage…


Will Putting Larger Diameter Wheels on your Road Bike make you FASTER? CeramicSpeed thinks so

Rider Cropped
Two days into the whirlwind that is Eurobike, new products are already piling up. So far, we have not been disappointed, and CeramicSpeed is one of those reasons. Reminiscent of some of the blinded out wheels you were supposed to put on your ride half a decade or so ago, these wheels are HUGE, and from amount of material they used…. or lack thereof, these look as light as they do fast.

Check out why CeramicSpeed says these are the FASTEST pulley wheels on the market and see the data that backs it up…


Quai, Metz develop radially staggered lacing box section carbon rims for enduro & more!

Quai x Stephen Metz box section carbon fiber enduro rims with staggered lacing for improved bracing angles

Inventor Stephen Metz showed us the SpeedRelease quick-release thru axle system at Taipei Show earlier this year. His latest project are these boxy carbon enduro rims for debut at Eurobike, built around a staggered lacing concept that provides even bracing angles for each side of the wheel regardless of differences in flange-to-center differences created by brake mounts and freehub spacing. As Metz puts it:

“The tech is known as Radially Staggered Lacing (RSL). It is based on having a different height on the left vs. the right spokes on the wheel, thus modifying the bracing angles in relation to each other.
The goal of any 1:1 wheel is as close to equal bracing angles as you can get and this is just one more tricky way to get closer. The side benefits are incredibly unique look and a box section on our Enduro rim that is super strong and laterally and torsional stiff while remaining very light.”

While not quite as wild looking as Alchemist’s latest I-beam design, these are certainly worth a closer look…


Spy Shot: Prototype 11-46 Wide Range Shimano Cassette

Ever since SRAM released its original 11 speed drivetrain in 2012, a whole industry has cropped up around creating either more affordable or wider range solutions.

When Shimano released its first 11 speed mountain bike drivetrain last year, I was a little disappointed to see the widest range cassette was an 11-40. The new XT Cassette helps push things a little further in the right direction with an 11-42, but some of us (myself included) could use a little more help, so we were excited to hear rumors circulating that Shimano was testing a wider ratio cassette. How wide?


First Ride: Pikes Peak Prototype: Rose Adjustable Enduro Bike


photo by Irmo Keizer

Not long ago we found ourselves looking at another bare aluminum European trail bike, once again screaming prototype. This time though we had a chance not only to get full details on the bike and take some photos to share, but also to throw a leg over it and ride it hard down some familiar trails. The bike was at Rose Bike’s press launch in the Austrian Alps and is the final working prototype they have used to dial in the geometry of their upcoming carbon Pikes Peak. The standout of the bike is a unique trailside-adjustable suspension setup that lets you not only flip between two different geometries, but also independently swap between two different shock progression rates in about 20 seconds with a single wrench.

Drop in after the break to see how the ProGeo adjustment works, more details on the upcoming production model, and see how it does on the trail…


World Cup DH, Pro Bike Check: Jasper Jauch’s Liteville 901 Prototype


Out of the German design lab and minds that bring us Syntace components, their in-house bike brand Liteville is developing an all new revamp to their 901 DH bike. Once again spotting a raw aluminum bike was a cue to look a bit further and see what is in the works. We caught up with pro rider Jasper Jauch at the Leogang World Cup to get the details on his Liteville 901 prototype.

This test bike brings back the 901 model, which isn’t technically in the current line (although it is listed through Syntace or some international distributors), where the slightly shorter travel 190mm travel 601 currently tops out the line-up. The new bike brings the travel back to 200mm and jumps to 650b wheels. Read on for more info and some close up pics….