Posts in the category Triathlon

EB15: Rotor Uno hydraulic road group – first look & tech details!

Rotor Uno hydraulic shifting road bike group tech details and photos

Our discovery of Rotor’s hydraulic shifting patents turned out to be well timed, teeing up the group’s public debut nicely. Turns out, our technical breakdown of the groups functioning was nearly spot on, so we’ll recap:

By using a completely hydraulic system from the shift lever all the way to the derailleurs and putting the ratcheting mechanism on the derailleurs, Rotor was able to eliminate any slack from the line that could lead to loose shifting. The side benefits of such a system included lighter weight and plenty of functional improvements that simply can’t happen on a cable-driven or mechanical system.

The key to the system is precision and reliability. Hydraulics have been proven in everything from bicycles to airplanes to heavy industry, just not for bicycle shifting until now. Their motivation was to let customers looking at Rotor’s oval rings and lightweight alloy cranksets find an entire group with the same brand. Undoubtedly, it will also give them more opportunities to put the group on pro teams that may otherwise have to opt for SRAM, Shimano or Campagnolo groups simply because of sponsorship programs dictating complete group use. And they hinted we might see some major teams on the group very soon. But that can’t be enough to justify the heavy time, energy and financial commitment the development of such a product can draw from a company. So, it needs create demand based on its merits. Of which, there are quite a few.

Check out the cutaway photos and tech details below, along with new carbon chainrings, and new 1x rings for road and mountain…

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EB14: Stages adds power meters to carbon cranks – Campy, FSA & proprietary SRAM solutions

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Stages Power has finally unlocked a way to bring their single sided power meter to left crank arms everywhere. Or, at least, to modern Campy, FSA and most SRAM cranksets.

To make it work with carbon,they had to develop a new strain gauge and assembly method – it takes about 30% longer to install them on carbon then on the alloy arms. They have to polish off the top clear coat layers, but don’t worry, Stages assumes the warranty from the original manufacturer should anything happen. The actual physical changes to the strain gauge and other internals are not something they would divulge. But they did say that one of the biggest challenges was keeping it accurate in fluctuating temperatures. Once they solved that, they were able to offer a product that doesn’t need to be zero calibrated when the temps change, maintaining its accuracy from ride to ride.

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

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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…

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SRAM RED eTAP Wireless – First Rides, testing protocols & predictions for the future

SRAM RED eTAP wireless shifting group first ride review

To celebrate the SRAM RED eTAP wireless shifting launch, they brought us to their drivetrain development office in Schweinfurt, Germany, for technical presentations and the very first public test rides anywhere.

We’ve covered the product tech, weights & setup here, now we’ll cover the lengthy testing procedure they underwent to ensure that the most anticipated launch in the company’s history is bombproof. And we’ll share thoughts after riding 145 miles (233km) over three days through the rolling hills surrounding their office.

The testing process started in the lab, progressed to employee and “super testers”, then smaller and regional teams, then finally to AG2R in the Tour Down Under and Tour de France. Here’s how it went…

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SRAM RED eTAP unveiled – F1 inspired wireless paddle shifting is here!

SRAM Red eTAP wireless electronic shifting road bike group

What if you could throw everything out and build the perfect drivetrain from scratch? What would you change? What would you be forced to change to get around other’s patents? And did it have to follow convention, or could they do away with things that simply weren’t needed…like wires and cables?

That was both the challenge and the opportunity SRAM had when it began developing an electronic shifting system. The starting point was asking “what else shifts?” Their answer, at the most impressive level, was Formula One race cars, the fastest shifting machines in the world.

Now, after five long years of development, we know their answers: The SRAM Red eTAP electronic groupset is here…

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EB15: PRO adds to their PLT road line, and updates Missile and Aero Wheel Looks – updated availability

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In addition to a broader new range mountain bike stems and bars, Pro also adds more to the road with new bars and wheels. The great performing, high-value PLT alloy cockpit group gets an update with new seatpost, bar, and stem designs. Pro also updates their aero carbon bar, stem, and wheels mostly with much more subtle graphics treatments. Slide on past the fold for more details and availability…

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Williams Introduces New System 38 Carbon Clincher to Compliment their 58/85mm Wheelsets

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Williams Cycling, becoming well known for their quality wheels and competitive pricing due to their “direct to consumer” business model is introducing the System 38, a new 38mm deep full carbon clincher wheelset to add to thier System 55, and 85 wheelsets. All are built on premium Sapim CX-Ray spokes and their new Sixty-Six hubs with hybrid ceramic bearings.  With more and more people leaning away from tubulars due to the improved technology, reduced weight, and the obvious convenience of clinchers, there are more high end clincher wheel sets available than ever. And Williams is aimed at getting these to consumers for less…

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Rotor pumps out new Uno hydraulic shifting road group w/ Magura brakes

rotor uno hydraulic shifting road bike group with magura brakes

Just days after we found the patent drawings and a mere week before Eurobike starts, Rotor has provided the first look at their all-new Uno road group.

Using a full hydraulic system for both brakes and shifting, the components should offer fluidly smooth gear changes and powerful braking. The hydraulic tech comes from Magura, whose been making hydraulic brakes for a long, long time and will provide the brakes for the complete group set.

All the tech details will come next week, and we’ve got the first appointment of the show booked to see it. In the meantime, more pics below…

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Review: Revisiting Praxis Road and Cyclocross Chainrings, Long-Term

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It’s been more than four and a half years since we last did a proper review of a set of chainrings from Praxis. While they do get pretty rave reviews from everyone who rides them, we thought it was time to revisit a few sets that we have put several thousand kms on to let you know how they have worked out and how they’ve held up over the long haul. The sets we’ll talk about in detail are the Standard Road 53/39 Clover rings, the all black Compact Road 50/34 rings, and the Cyclocross 46/36 rings.

Come past the break for our thoughts, detailed wear photos, and actual weights…

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