BREEZE BLOCKS
Bicycling South Africa|May/June 2023
IT'S ONE OF THE GREAT MYSTERIES OF CYCLING: WHY DON'T TAILWINDS MAKE UP FOR HEADWINDS?
PROF. ROSS TUCKER
BREEZE BLOCKS

IF YOU’RE EVER in The Netherlands in their early winter, look out for the Dutch Headwind Cycling Championships. Seriously!

This happens on the Oosterscheldekering storm barrier, which faces the North Sea; riders wait for a storm that registers seven or higher on the Beaufort Scale (that’s 60km/h, if you’re counting), and… off they go! Eight and a half kays, straight into it, on single-speed bikes provided by the race organisers.

The event’s been won by some well-known names (Bart Brentjens of Absa Cape Epic fame was the first winner, and is still the course record-holder, though into wind speeds of ‘only’ about 40km/h). In 2016, into a headwind of around 80km/h, it was won in 22:30 – that’s an average speed of 22.7km/h…

If those hardy (okay, crazy) cyclists could turn around, they’d benefit from a massive tailwind. But here’s the thing – no tailwind ever makes up for the time lost into the headwind. Every cyclist knows this dilemma: your gains don’t match your losses. So when you ride ‘there and back’ on a windy day, at exactly the same power output as on a still day, you can’t do it in the same time as on that still day.

WHAT A DRAG

Why is this? Well, because physics. And logic too, even if it doesn’t seem logical at first glance.

Without diving too deeply into the physics, the principle is that when you ride on a flat road, you don’t need to do any work against gravity. All your useful power is spent overcoming two forces: aerodynamic drag, and rolling resistance. When you ride into a headwind, your aerodynamic drag goes up; it goes down again when you ride with a tailwind.

Bu hikaye Bicycling South Africa dergisinin May/June 2023 sayısından alınmıştır.

Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.

Bu hikaye Bicycling South Africa dergisinin May/June 2023 sayısından alınmıştır.

Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.

BICYCLING SOUTH AFRICA DERGISINDEN DAHA FAZLA HIKAYETümünü görüntüle
PAINT YOUR BIKE
Bicycling South Africa

PAINT YOUR BIKE

A DIY GUIDE TO CUSTOM- PAINTING YOUR BIKE AT HOME

time-read
5 dak  |
March / April 2025
THE CASE AGAINST STRAVA
Bicycling South Africa

THE CASE AGAINST STRAVA

I'LL BEGIN BY SINGING SOME PRAISES. Without Strava, I'm not sure I'd have re-engaged with cycling at the level I did. Coming from just occasionally messing around on mountain bikes as a teenager to trying my best to race at an elite level, Strava has played a role in pushing me to ride faster, harder and longer than I'd ever done before.

time-read
1 min  |
March / April 2025
OVERBERG MEANDER
Bicycling South Africa

OVERBERG MEANDER

CHOOSE YOUR OWN ADVENTURE IN THE ROLLING HILLS OF THE SOUTHERN CAPE.

time-read
3 dak  |
March / April 2025
THE RIGHT TO RIDE
Bicycling South Africa

THE RIGHT TO RIDE

THEY LED A CYCLING REVOLUTION IN AFGHANISTAN, WHERE WOMEN WERE FORBIDDEN TO RIDE. WHEN THE TALIBAN RETURNED TO POWER, THEIR ONLY HOPE WAS A HARROWING ESCAPE TO AN UNCERTAIN FUTURE.

time-read
3 dak  |
March / April 2025
ONE MAN'S CRUSADE TO TAKE DOWN ZWIFT CHEATS
Bicycling South Africa

ONE MAN'S CRUSADE TO TAKE DOWN ZWIFT CHEATS

INDOOR CYCLING AND VIRTUAL RACING ARE BOOMING - AND SO ARE THE RANKS OF DIGITAL DOPERS ABUSING THE PLATFORMS.

time-read
10+ dak  |
March / April 2025
Gale Force
Bicycling South Africa

Gale Force

IN 2025, THE ABSA CAPE EPIC WILL ROLL OUT FOR THE 21ST TIME. ONLY TWO RIDERS HAVE FINISHED ALL 20 PREVIOUS EVENTS.

time-read
8 dak  |
Absa Cape Epic 2025 Race Guide
The Contenders
Bicycling South Africa

The Contenders

Matt Beers is undoubtedly the most popular cyclist in South Africa.

time-read
6 dak  |
Absa Cape Epic 2025 Race Guide
The Czech Mates
Bicycling South Africa

The Czech Mates

THIS YEAR, BLIND ATHLETE ONDŘEJ ZMEŠKAL and his tracker Marek Peterka will tackle the Absa Cape Epic riding a tandem. And far from being daunted, the duo are excited about the challenge ahead.

time-read
2 dak  |
Absa Cape Epic 2025 Race Guide
Beyond The Trails
Bicycling South Africa

Beyond The Trails

Over the past two decades, the Absa Cape Epic's impact on South African cycling tourism has been nothing short of phenomenal. The race not only attracts professional and dedicated amateur riders from across the globe, but also plays a pivotal role in boosting local economies and showcasing South Africa as a premier destination for adventure seekers. Let's delve into how the race achieves these feats:

time-read
2 dak  |
Absa Cape Epic 2025 Race Guide
The Fixers
Bicycling South Africa

The Fixers

EVERY DAY, WHEN YOU FINISH A STAGE of the Absa Cape Epic, it's your chance to recover and recharge for the next day.

time-read
5 dak  |
Absa Cape Epic 2025 Race Guide