Pirelli Brings The Speed With The Zero TT

Pirelli P Zero Velo TT Tire

As someone who has tried dozens of different tires, I’ve yet to find a model that genuinely stands out for performance. In fact, I figured all modern “race” tires were more or less the same. That has changed with the Pirelli P Zero Velo TT.

Easily the best-performing clincher tire I’ve ever used, the Pirelli P Zero Velo TT is an incredibly fast, grippy and lightweight option that inspires great confidence in handling and achieves great speed in acceleration. Devoid of tread and lacking any puncture-resistant band, this 165-gram, 23mm-only tire is a great choice for time trialists, criterium racers, trackies and anyone looking to go as fast as their legs will carry them.

This tester has grown accustomed to the tiny squeaks of his usual clincher tires while traversing the 43-degree banking of Portland Oregon’s Alpenrose Velodrome at slower speeds. That sound, I assume, is the product of tiny slips of the tire. Yet the Velo TT simply planted on the pavement, and this tester could ride much more confidently and with more safety along that familiar surface. The difference was startling.

Pirelli P Zero Velo TT Tire

This isn’t a tire for going slowly, though. The Velo TT spins up with a great ease due to very light weight, and the tire smooths out bumps on high-speed sprints. Foreshadowing this ride quality was the experience of simply installing the tires, which are incredibly supple and mounted easily.

In such a controlled environment, it’s hard to evaluate puncture resistance. Pirelli offers several models with puncture-resistant features, and while the company claims the compound of the Velo TT can resist punctures to a degree, I believe it’s safe to assume other options would be more suited to long rides or races.

Yet across a well-manicured surface during a criterium, time trial or track race, the P Zero Velo TT will provide an undeniable advantage.


Bont Dials In Fit With Helix

Bont Helix

Exceptional lightness, rock-solid foot support, heat-moldable fit, replaceable hardware and modern styling would be enough for Bont Cycling’s newest road cycling shoe, the Helix. But the Australian company also adds a revolutionary “twist” on the well-established Boa dial, employing a single, foot-encircling cable that hugs like a slipper and holds like a rivet.

Bont Helix

While this tester ranked the Helix highly across a litany of traditional performance metrics– not the least of which being a reported 230-gram weight for size 42 – it is the unique, single-dial Boa cable system that marked the shoe’s most memorable feature over many miles on the road and the velodrome. Wrapping from the top of the shoe through the sole beneath, the continuous cable design delivers comfortable and even pressure while facilitating easy and full-foot fit adjustments on the fly.

Announced in March 2018, the Helix shares a similar silhouette to Bont’s previous range-topping racing kicks, the Vaypor S. Yet the cosmetic similarities betray significant differences under the surface, with the Vaypor S leveraging a dual-Boa closure across the top of the foot and the Helix, its foot-encircling, single-cable design.

“The Vaypor S has been our standard for race fit but I still wanted to find a way to improve upon it, particularly for riders with a low volume foot. The cable integration system has allowed us to keep the weight low, while adding even more to the concept of custom fit. Working with Boa and taking the wire completely around the shoe, we are able to ultimately fine-tune the fit and control the volume adjustment,” said Bont CEO and designer, Steven Nemeth, in the March release announcing the Helix.

This quick-to-adjust dial proved very convenient between efforts at Portland Oregon’s Alpenrose Velodrome, where Bont’s track-specific Vaypor T model is a frequent sight among elite riders. The ability to quickly toggle between extra tightness for races and a more relaxed fit for recovery is a great feature, and the foot-enveloping nature of the closure system nicely distributes the pressure of an extra turn of the dial.

Other high-end cycling models might feature a combination of closure systems across the top of the foot, requiring more time and dexterity to ratchet up the fit in the moments before a hard effort. Not so with the Helix, which quickly revealed itself as a track-friendly companion whose design readily drew the curiosity of other riders.

It’s not just trackies that can benefit from the Helix single-Boa system. Imagine quickly ratcheting up for extra stability at the foot of a decisive climb, or spending just a moment to dial back a couple notches when you are holding your spot in a paceline.

Bont Helix

Perhaps owing to Bont’s experience with track-specific footwear, however, the Helix felt extremely solid in sprints. With a bathtub-like shape, the monocoque carbon-fiber sole provides excellent stability by cradling the sides of the foot. This is particularly evident for the rear of the shoe, where the visible part of the sole nearly envelopes the entirety of the heel. The sole also properly angles the arch of the foot in line with the knee for better pedal rotation, and features an intricate grid system for careful placement of the cleat.

Bont Helix

The shoe’s upper includes a bonded-in, Kevlar-like fabric that prevents stretching and further secures the upward part of the pedal stroke. And within the Helix is a do-it-yourself custom heat molding sole, which further cradles the foot.

All of these features add up to a feeling of serious security when a user is really putting down the hammer. But the Helix doesn’t skimp on ventilation either, with mesh intakes integrated into a protective bumper at the front of the shoe and ample perforation above the toes. On long road rides and sunny days, the Helix was noticeably cooler than this tester’s typical high-end cycling footwear.

This tester also had the opportunity, unfortunately, to test the Helix’s crash worthiness during an early-season pileup at the track. In a crash that burned through the palm of a glove and most of a kit, the Helix emerged scuffed but totally functional. It’s hard to rank long-term durability in just a few months of testing, but my expectation is high for long-term use of the Helix.

Bont Helix crash

Are these the shoes for you? Cycling shoe preferences, like any other piece of apparel, are extremely personal. Bont is very thoughtful in its design approach, using anatomically correct lasts and implementing ideas like a generous toe box. The company also provides an online sizing tool to determine what should work for the buyer. Yet the best test, of course, is one you can do in person.

What isn’t up to opinion, though, are the metrics on this shoe. Light, stiff, stable, user friendly…what more can you ask for?


Is going in circles really going to work?

Counting the seconds as I barreled toward the 42-and-a-half degree banking of Manchester’s HSBC UK National Cycling Centre velodrome for the first time, I couldn’t quite banish the instinct that I was about to end my honeymoon with a busted face.

Manchester was the latest stopover in our freewheeling post-wedding circumnavigation of Scotland and northern England, a loosely planned route that proved highly susceptible to the suggestions of fellow pub-goers. Following the vague endorsement of “it’s a cool city,” we wound up penciling in two days on the itinerary, relying on our good record of finding our own fun.

Perhaps the single existing bit of intelligence we had on Manchester was the velodrome, a facility I had read about for years in the scene-setting of various bits of cycling news. We committed to having a look, hopping the light rail for an easy trip out to the track where riders like Chris Hoy got their kicks in.

This was nothing like the beloved concrete Hellyer Velodrome in my hometown of San Jose, California. The massive indoor track seemed something reserved for professionals, something we could never hope to experience. But I remembered from San Jose that Hellyer regularly rented bikes for beginner sessions at the track, and it wasn’t long before a couple of dirty backpackers in T-shirts wound up on the roster for a one-hour afternoon session at Manchester.

The banking loomed huge as I hit it as fast as I could, as a not-so-insignificant part of my inner voice continued to scream, “Is this really going to work!?”. Yet I felt the curve scoop me up as it had the dozens of riders I’d watched that day and dump me out on the next straightaway with smooth and seamless speed. The sensation of building altitude around a turn and accelerating on the descent was incredible.

After adjusting to the surprising scale of the whole experience, we wished we had more time. We hadn’t even gotten into the racing. It was sheer joy, and one of the most memorable parts of the trip.

Velodromes all over the world offer these sorts of sessions, and in this case, it was cheap. Around $25 U.S. got each of us a bike, shoes and helmet – the worst part of the process was the minor annoyance of setting up a user account for the facility.

We were lucky to sneak in for the session, but I’d recommend calling a few days in advance for advice on how to properly set up an account. It was a hoot, and a nice way to work off some of that ale.


We Love Aluminum Frames, and You Should Too

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eTap-equipped MKI road at NAHBS. Photo: Stephen Lam/Element.ly

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Photo: Stephen Lam/Element.ly

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Frame holding jig in the finishing booth. Photo: Stephen Lam/Element.ly

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A few of Andrew's origin frames. The steel one in the middle was the one he build while attending UBI in 2009. Photo: Stephen Lam/Element.ly

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Andrew prefers to operate the foot switch bare-footed for better feel and control. Photo: Stephen Lam/Element.ly

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Mise en place. Photo: Stephen Lam/Element.ly

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Pre-weld markings. Photo: Stephen Lam/Element.ly

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Spent welding rods. Photo: Stephen Lam/Element.ly

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Head tube on the welding jig. Photo: Stephen Lam/Element.ly

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A bunch of triangles made while practicing welds.. and finishes. Photo: Stephen Lam/Element.ly

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A JET horizontal mitering bandsaw plus the must-have, multi-use gallon bucket. Photo: Stephen Lam/Element.ly

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Rear triangle alignment jig. Photo: Stephen Lam/Element.ly

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Custom frame oven designed by none other than Andrew himself. Photo: Stephen Lam/Element.ly

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Frames. Photo: Stephen Lam/Element.ly

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Welding time. Photo: Stephen Lam/Element.ly

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Andrew seen through the yellow curtain. Photo: Stephen Lam/Element.ly

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Andrew, with a MkI road, and Manny. Photo: Stephen Lam/Element.ly

A custom aluminum frame is somewhat of a unicorn these days. Stroll down the aisles at NAHBS and it’s obvious that the dominant materials for frames are titanium, carbon, and steel. And those are all wonderful materials in their own right, but I have a soft spot for aluminum.

As a kid I drooled over a Klein Quantum Pro with that badass orange paint job, or the flaming red Cannondale CAAD Cipollini rode. There’s a certain beauty to fat tubed, smooth welding frame that just screams come at me bro.

Well, Klein’s gone now (RIP), but my hope of finding a good aluminum bike is not.

The Low Down

Sure, you could go with a big name factory option like Cannondale’s CAAD 12 and Specialized’s Allez, but if you want custom aluminum hand-crafted by an expert, Andrew Low of LOW Bicycles is your guy.

Growing up with interests in model airplanes, guitars and cars, Andrew started building roll cages for off-road vehicles while pursuing his degree in fine arts in Colorado. After moving back to his native San Francisco in 2005, he got really into bikes, and eventually got the idea to make his own frame.

Years of researching tools, saving money, and welding practice finally yielded two frames by the summer of 2010. From there, Andrew “started to take those around town where bike messengers were hanging out.” The LOW frames were an instant hit, and that was the origin of LOW Bicycles.

Today, besides offering four different track models, LOW is dipping into the resurgent aluminum road and cross market with their new MkI road and cross frames—all made in their 500 square foot shop so tidy you would think you just walked into a boutique car shop. Here’s what he has to say for himself.

The Interview

Andrew Low. Photo: Stephen Lam/Element.ly
Andrew Low. Photo: Stephen Lam/Element.ly

Why aluminum? I like the look of oversized tubing as opposed to steel frames but I also wanted to make racing bikes and aluminum is a great material for that, dollar per dollar it’s the most effective material for racing. It’s really versatile in that you can make a really stiff bike and you can make really comfortable bike contrary to popular belief.

It’s just how you shape the tubes.

Aluminum is softer than steel and it’s not as rigid and brittle as epoxy which you find in carbon fiber.

How many frames do you make now? 12 frames every four weeks, and we stop 4 weeks out of the year. So that’s about 120 bikes a year.

Describe your bikes in five words: Beautiful, aggressive, well-designed, well-made, fast.

Why #thismachinekillscarbon? Because if you get on our bikes you won’t feel any disadvantage because you’re on an aluminum bike. I came up with that hashtag myself. The full quote is “this machine kills carbon and your preconceived notion of superiority.”

That’s what we’re setting out to do with our road bike. It started happening now in the industry where big brands are investing into high-end aluminum bikes. Specialized with their Allez which is a beautiful bike in my opinion. Some people are starting to realize that barring from buying the highest end carbon frame you can get just as good if not better performance out of aluminum. One of my bikes will ride much better than a similar-priced carbon bike. You’ll feel the difference.

Uphill or downhill: Downhill.

Favorite riding place: Riding in Marin is awesome, riding through traffic is fun. I used to love riding the city loop

Shaped aluminum tubes ready to be cajoled into a frame. Photo: Stephen Lam/Element.ly
Shaped aluminum tubes ready to be cajoled into a frame. Photo: Stephen Lam/Element.ly

One thing people don’t know about you: I am working on getting my pilot license.

Favorite music: Bands that I grown up loving: the Ramones. Jonathan Richmond, jimmy Hendrix, Lou reed, a lot of stuff from late 70s, early 80s. I play the guitar.

What are you most proud of? That I’ve able to keep this going for five years. Most businesses fail within the first year. I am proud that it took off to begin with. We have a shit ton of struggle keeping the business going. But I am just really proud that I did something people like. For me that’s awesome. It’s validating.

Andrew hard at work. Photo: Stephen Lam/Element.ly
Andrew hard at work. Photo: Stephen Lam/Element.ly

How long does it take to produce one frame: About 30 hours per bike.

Morning or night person: Both. I don’t sleep that much. I go to bed late and wake up early.

Anything else you’d like to add: Buy my bikes!