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Technical FAQ: The science of tire pressure, rim width, and heat buildup

This week, Lennard Zinn explains the science — complete with equations — regarding tire pressure and the width of your rims. (Velo News)

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Larry Warbasse blog: It’s not about the disc brakes – Journal

Let me explain: this entire fight we are in the middle of, this push and pull between the riders, the UCI, and the bike industry – it’s not a fight over a braking system. It’s a fight for power. And not of the stopping variety. (Rouleur)

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Bugatti Offers Super Exclusive PG Bike

Bugatti has partnered with some of the most prestigious bike brands and engineers, to create what may every well be the most exclusive (and perhaps expensive) cruiser style bike ever conceived – the PG Bugatti Bike. (Capo Velo)

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Apple applies for patent to calculate cyclists’ power from wind resistance and other factors

The application suggests that by using these factors, gathered from a wearable device that has a GPS, accellerometer, heart rate monitor and other features, it could calculate rider power without the expense of a traditional power meter. (Bicycle Retailer)

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The best folding bikes and electric folding bikes

A folding bike could be the ideal solution if you want to combine a cycle trip with a train journey. (Cycling Weekly)

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BFS2017: Hiplok Z-Lok adds light coffee stop security with reusable steel reinforced zip ties

If you are looking for actual security from one of Hiplok’s products, get one of their namesake chains around your waist. But if you are in a decent neighborhood and just going to pop into the cafe to get a coffee, and want to simply slow down someone from riding away on your bike, the

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Wahoo launches Elemnt Bolt GPS with integrated aero mount

Wahoo Fitness has just revealed the Elemnt Bolt which it says is the first GPS cycling computer and mount developed as an integrated system to reduce drag. (road.cc)

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2017 NAHBS: Argonaut Road with SRAM Red eTap | The Radavist

Each year, Argonaut brings some very classy bikes to NAHBS and even though I loved the matte black and Olive Drab with King 40th build he brought, I couldn’t help myself and had to shoot this white beaut with SRAM Red eTap. (The Radavist)

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NAHBS photos: Show winners and their bikes

Award winners from the North American Handmade Bicycle Show. (Velo News)

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Sam Elenes: Cannondale-Drapac’s Trusted Hand

Preparing bikes for a time trial is always a complicated affair for a mechanic, but the stage 4 time trial at Paris-Nice had just become more complicated by the freezing rain that greeted Elenes that day. But he remained relaxed as usual—giving 100 percent still inspires him. (Peloton Magazine)

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BFS2017: Ass Savers gets new, more secure lock with Flip Tip update

We’ve tried it out and it does what it claims – easy install, works with a few rail styles we’ve tried, and is surprisingly hard to pull off when locked. (Bike Rumor)

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Paris-Nice tech: A prototype Cervelo R5, the Factor Slick, custom colours and more

We spent a few cold and wet days wandering the pits of Paris-Nice to bring you all the latest tech. Here’s what we found. (Cycing Tips)

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Could Alberto Contador have won Paris-Nice on a different bike?

Alberto Contador lost Paris-Nice to Sergio Henao by a minuscule two seconds. What would have happened if he raced on Trek’s aero frame, the Madone Race Shop Limited, along with some deeper Bontrager Aeolus 5 wheels? (Velo News)

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2017 NAHBS: Calfee Luna Pro Road

This might be one of the nicest Calfee road bikes I’ve seen at NAHBS. It’s bright while still being subtle in the details. (The Radavist)

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NAHBS 2017: Chris King goes matte with standard and Limited Edition finishes… and Bourbon?

Put some fancy bike parts and a bottle of bourbon under a glass case, and you’re pretty much guaranteed to attract attention at NAHBS. (Bike Rumor)

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CeramicSpeed Offers 3D Printed Titanium Jockey Wheels

CeramicSpeed is always pushing the boundaries in terms of drivetrain efficiency and performance, culminating into the company’s latest high end product – 3D printed titanium jockey wheels. (Capo Velo)

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Mavic Updates the Open Pro | The Radavist

With an inner width of 19mm, Mavic has updated their Open Pro rims with a modern look, new finish, and an improved braking surface thanks to their Exalith technology. With claims of these new hoops being lighter and stronger than ever, Mavic is excited to bring back this classic rim. (The Radavist)

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Gianni Moscon’s front wheel collapses in bizarre crash during Tirreno TTT

The Italian didn’t appear to hit anything as his front wheel collapsed beneath him. (Cycling Weekly)

Tech

Cannondale’s Ryan Mullen unveils new tech at Tirreno-Adriatico 

Irish rider among the first to embrace Velon’s new live data package. Also unveiled his new TT bike with special TT disc brakes. (Sticky Bottle)

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Tech tidbits from Tirreno: Exploding wheels and TT disc brakes

Cannondale-Drapac showcases a new disc brake TT bike while Team Sky suffers costly technical issues in Tirreno stage 1 team time trial. (Velo News)

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HIA Velo’s Allied Cycle Works unveils 800g full custom ECHO road bike

Following in the footsteps of their first bike, the ALFA, Allied Cycle Works will show off the full custom carbon fiber ECHO frameset at NAHBS this weekend.

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Technical FAQ: Mixing SRAM and Shimano

This week, Lennard Zinn answers a question about mixing SRAM and Shimano drivetrain parts. (Velo News)

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Strade Bianche: The bikes and equipment before and after the Italian classic

Regular race bikes for white roads of the Strade Bianche race held in Italy over the weekend. (road.cc)

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Cannondale-Drapac pros use disc brakes at Strade Bianche despite pressure from peloton

Teams are pressuring riders to use disc brakes while their colleagues are pushing them to prohibit their use, says Alex Howes (Cannondale-Drapac). The American was only two of 168 cyclists who began the Strade Bianche race on Saturday on a disc-equipped bike. (Cycling Weekly)

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Inventor of the Lithium-Ion Battery Develops First All-Solid-State Battery Cells

Good news for the electric bicycle industry, as a team of engineers led by 94-year-old John Goodenough, professor in the Cockerel School of Engineering at The University of Texas at Austin and co-inventor of the lithium-ion battery, has developed the first all-solid-state battery cells that could lead to safer, faster-charging, longer-lasting rechargeable batteries for handheld

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CPA lawyers challenge UCI’s disc brake rules

Lawyers from rider organization Cyclistes Professionnels Associés (CPA) have sent a “legal warning” to the Union Cycliste International (UCI) on the issue of disc brakes in pro racing. (Velo News)

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Is the bike industry pushing disc brakes in pro cycling?

Yes and no. (Cycling Tips)

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Where is the value in a carbon wheelset?

Professional riders race on them all the time and results from wind tunnel testing tend to promise significant time and power savings. But does that mean a carbon wheelset is good value for money?

Australian tech editor Matt Wikstrom had a look at this question four years ago, and now he takes a fresh look

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First Look: FSA PowerBox power meter crank. This one costs £629

The power meter market continues to expand and the latest option comes from Italian company FSA, with its new Powerbox borrowing power2max technology and costing £629 for the aluminium version we’ve just got our hands on today. (road.cc)

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Alberto Contador’s Custom “Grand Tour Celebración” Trek Émonda

Watch as GCN takes a close look at Alberto Contador’s custom Trek Émonda.

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Fizik investigating if disc brakes can slice through its shoes

Company examining Doull’s shoe following Abu Dhabi Tour crash. (cyclingnews.com)

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Marcel Kittel: ‘I’m not using disc brakes out of respect for my colleagues’

German sprinter calls on riders to “speak with one voice” over disc brake decision. (Cycling Weekly)

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Did a disc rotor slice Owain Doull’s shoe at Abu Dhabi Tour? It’s hard to say

At this point, in some ways it doesn’t matter whether Doull’s shoe was actually sliced by Kittel’s rotor or by something else. Until the UCI deals with the issues at hand, expect more of these sorts of stories as the renewed disc-brake trial gets further underway. (Cycling Tips)

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Doull claims Kittel’s ‘lethal’ disc brake bike almost caused serious injury

Owain Doull has called for disc brakes to be banned unless protective casings are introduced after suffering a crash on the opening day of the Abu Dhabi Tour in which one of Marcel Kittel’s rotors slashed through his shoe. (cyclingnews.com)

Tech

Spare a thought for the humble valve stem – Everything you need to know

It is easy to overlook the humble valve stem, but should it fail, or worse, be too short to suit your wheels, then it can sabotage your entire ride. In this post, Australian tech editor Matt Wikstrom takes a look at one of the most trivial but important parts of your bike. (Cycling Tips)

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Technical FAQ: Lennard’s big tubeless road experiment

After trying some other options, I’m revisiting this question from Mark about how best to set up tubeless tires for a travel bike so they can be deflated and still be re-inflated at one’s travel destination with a mini-pump. (Velo News)

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2017 UCI WorldTour: The newest tech in the peloton

The most interesting new kit being used by the pros this year. (road.cc)

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First look: London Bike Show

A quick whip around ExCel, starring Canyon, Cannondale, Boardman, Factor, Orro… (road.cc)

Gallery – cyclingnews.com

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Are single-ring chainsets the future?

Could the simplicity and low weight of a 1x set-up outweight its flaws? Quieter, more secure, lighter — these are just some of the praises our dirt-riding brethren have been singing about single-ring set-ups (Cycling Weekly)

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DeFeet Factory Tour 2017

Learn how DeFeet cycling socks are made and what sets them apart from other brands.

Tech

Contador’s new custom painted Trek Émonda

Watch: a video released by Trek shows Alberto Contador’s new Émonda, custom painted for the start of his 2017 season.

Front Page

Alberto Contador’s custom painted Trek Emonda for first race of 2017 with new team

Alberto Contador will get his 2017 season underway with his new team Trek-Segafredo by riding a specially custom painted Emonda in the Ruta del Sol, the Spanish WorldTour race starting today. (road.cc)

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Riders’ association protests disc brake usage without further safety measures

Disc brakes may be back in use this season after the UCI relaxed temporary constraints on their usage, but the riders’ association CPA is not satisfied. (Cycling Tips)

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‘You can’t just force disc brakes through’

Pro road riders’ union wants to stop the current trial of disc brakes in the peloton as some safety concerns have not been addressed. (Cycling Weekly)

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Video: John Degenkolb’s Trek Madone

John Degenkolb is new to Trek Segafredo for 2017 and Lasty was lucky enough to check out his Trek Madone in go faster red! (GCN)

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Disc brake debate reignites as CPA set to clash with UCI

Overwhelming majority of riders against discs despite Kittel, Boonen advocating. (cyclingnews.com)

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Gallery: Luis Leon Sanchez’s Argon 18 Nitrogen Pro

A look at Astana’s aero offering for 2017. (cyclingnews.com)

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Gallery: Patrick Bevin’s Cannondale Super Six Evo

Check out the New Zealander’s lime green ride. (Bike Radar)

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Gallery: Tiago Machado’s Canyon Aeroad CF SLX

A look at the Team Katusha-Alpecin rider’s bike for 2017. (Bike Radar)

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Is heat build-up in disc brakes something to worry about?

Could overuse and heat build up in disc brakes prove catastrophic? (Cycling Weekly)