Claudio course check from Andorra with a twist. more »
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Carbon Fiber bikes are awesome, but unlike steel or alloy, they can’t be recycled. Instead, they’ve been sent to the landfill. That may be changing soon, due to new research.
In recent years, carbon fiber has gained widespread acceptance in the cycling industry for its ability to produce stiff, lightweight components. The downside is that the material cannot be recycled, which sort of undermines the whole ‘53 miles per burrito‘ concept.
Currently, the material can be ‘downcycled‘, but the process is energy intensive and often highly toxic. The issue is that carbon fiber is made from sheets, which are bonded together by epoxy. To recycle it, you have to remove this epoxy. There are several methods for doing this but in addition to being a pain in the ass to do, the resulting fibers that aren’t as strong.
Strength, stiffness and weight can be optimized in different parts of the frame, making carbon fiber an ideal material for frame construction.
Recently, researchers at American universities have discovered two different solutions for recycling carbon. The first breakthrough came earlier this year from the University of Colorado Boulder, where a team pioneered a method for soaking carbon-fiber composites at room temperature in an organic solution.
Now a group at Georgia Institute of Technology has developed a method that involves soaking the material in an alcohol based solvent. Their process is focused on carbon fiber that uses a type of epoxy called vitrimer as a bonding agent, so it doesn’t work for all types of carbon. However, their method allows them to recover nearly 100% of the materials.
Both of these new methodologies are still in development, but will have major implications for in the future. According to Boeing, virgin carbon fiber retails for between $ 15-30 a pound, but the reclaimed stuff goes for one-third to one-half less.
The raw form of carbon fiber are plyable sheets such as this.
The idea of cheaper bikes is alluring, but the most important story here is the environmental ramifications. Right now, millions of pounds of carbon fiber are sent to the landfill each year. This stuff isn’t exactly biodegradable.
Carbon fiber can be molded into unique shapes and then hardened.
As the material makes its way into more planes, cars and sporting goods the problem compounds itself. That hasn’t stopped us from reviewing carbon fiber wonder bikes, but it doesn’t make us feel good about it (and that’s before we start discussing the working conditions overseas). The good news is, there’s light at the end of the tunnel.
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Rocky Mountain is jumping on a wheel/tire size bandwagon that Trek pioneered with the launch of the Farley Fat Bike back in 2015: 27.5 fat. While it may be a very small bandwagon, Rocky is launching two new fat bikes with the new wheel size: The Suzi Q -90° RSL and the Suzi Q -50°. The …
Rocky Mountain Launches Two 27.5″ Fat Bike Models at Eurobike 2016
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Many of the features in Squamish are instantly recognizable due to the dozens of videos shot here each year. Photo by Caleb Smith
Squamish is home to some of the best mountain biking trails in the world. They’ve featured in dozens of videos each year, so you’re bound to recognize iconic sections of trails.
Our personal favorites include Half Nelson, Pseudo-Tsuga, Rupert, and Angry Midget, but there’s plenty more to explore. So do yourself a favor and get out there.
For more info, visit MTB Project or Trail Forks.
Our favorite meals at Fergie’s are the avo benny and pulled pork sandwich.
Whether you’re headed to Whistler or on your way home, Fergie’s Cafe is a must stop. This little restaurant is a short drive off the main road, so it’s not frequented by many tourists. It’s more of a local’s only destination, but the food and ambiance are well worth the detour.
Don’t have time to linger over a meal? Visit the Locavore. It’s a food truck located just off the highway, but the cuisine will not disappoint.
For more info, visit Fergie’s Cafe or the Locavore.
If you think the Chief is epic from below, wait till you catch an aerial view.
The Sea to Sky Highway offers breathtaking views from the passenger seat of a car, so imagine what things look like from above.
Get a bird’s eye view and soak it all in with the crew at Sea to Sky Air. They offer tours starting at just $ 86 CAD, which amounts to a bag of magic beans with the current USD exchange rate.
For more info, visit Sea to Sky Air.
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A basic run down of the common sources of clanging and clacking so you can tune your ride. more »
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The Shimano Koryak post is a 120mm travel cable actuated post from Shimano’s PRO division.
Weighing in at 520g for the complete system including lever and cables, the Koryak is a 120mm dropper post. It is cable actuated for simplicity, reliability and easy installation. It is available in 30.9- or 31.6mm diameter options, with an ‘infinite’ or non-indexed selection of height positions.
The stack height of the post above the seat collar is not too tall thus allowing proper fit with many riders on a variety of frames.
The smooth downward movement and quick, responsive upwards rebound of the post is provided by a replaceable air cartridge. We do not know at this time if the air pressure is adjustable or if the rebound speed of the post is damped or can be controlled by the lever actuation.
Two levers are available, an over the bar lever and this under bar lever in the photo. It features excellent machining and integration with Shimano brake levers.
Shimano’s OPTISLICK cables offer optimum performance in the face adverse conditions. The cable can be easily detached at the seatpost end for easier installation and servicing.
Two lever options are available, a regular up/down lever which can be mounted on the left or right of the bars in conjunction with left and right shifters. Or more ideally, a Firebolt-style lever (compatible with Shimano I-Spec II) for those running 1×11 or a DI2 Syncro shift 2x drivetrain with only one right-hand shifter.
The head is a no-offset, low profile, one bolt unit that uses friction to lock the saddle angle in position.
We have waited a long time for Shimano to come offer a dropper post. This is lucrative market with opportunity as there is no perfect solution so far. This year, many promising products have been introduced that offer better performance and value than previous efforts. We’ve long dreamed of a world where we can buy an XT dropper post and expect robust performance. Or even better is an SLX dropper that’s affordable so we can put one on every bike in the stable.
This one is not quite what we expected, coming in under the PRO division of Shimano. But we’ve used a few PRO products and have been pleased so far. The integration between the levers and handlebar real estate look promising.
The cable receiver uses a normal entry with the removable end on the dropper side. This allows easy release and installation of the post.
A one-bolt head is less than ideal for us because it relies on friction to hold the horizontal position of the saddle in place. It either slips on hard impacts or gets frozen in place during adjustments. 120mm is barely sufficient these days too as 150mm drop lengths are becoming the norm.
But we hope this is the start of Shimano’s continued participation in the category as more droppers from them are introduced. We also hope the price (not yet announced) is attractive and aggressively positioned.
For more information visit bike.shimano.com.
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