TOKEN TUESDAY 20/02

All things new and happening at TOKEN Cycling SA

TOKEN KONAX TRI

KONAX TRI is the deepest and most definitely the fastest rim in TOKEN’s new 2018 ZENITH lineup. Following extensive testing and analysis the 76mm-deep KONAX TRI is not only quicker than the previous generation C590 (F-50mm / R-90mm), but also nearly 100g lighter.

THE TOKEN ZENITH RANGE 

If you are a rider who wants the best, you want Zenith level components. We design and build Zenith level components for riders who ride several days a week, every week of the year. We expect you to race on them and train on them and be very demanding. We know you’ve been riding for years and know the difference between what works and what doesn’t. We aren’t worried that you’ll compare our components to other brands because we are confident that they’ll meet your high expectations. Zenith-level components are built to help you get where you’re going sooner.

WHY YOU SHOULD INVEST IN THE TOKEN KONAX TRI

These aero wheels are fast in two ways. First, their smooth airfoil shapes pass through the air a lot more cleanly than a box-section rim. The tyre is the leading edge and splits the air. Behind it, a deep rim controls the airflow, helping it to come together again smoothly. A shallow box-section rim can’t do this, so air behind it is turbulent, causing more drag.

Secondly, deep wheels aim to ‘sail’ on crosswinds by making the airflow follow the shape of the wheel as it passes over it at an angle, creating forward thrust. In this way the wheels’ own drag decreases as the wind angle increases, until they reach a ‘stall’ point at which the drag sharply increases again because the airflow detaches causing turbulence and an area of low pressure behind the rim. Wide rims enable much higher stall angles, often beyond what you’re likely to encounter on the road.

The power figures are higher for the greater 12.5º wind angle because the drag of the total bike and rider system is higher, even though the contribution of the wheels is smaller. Overall drag will always be lower at 0º (i.e. head-on or no wind) because the much smaller frontal area of the bike and rider outweighs the drag reduction of airfoil shape wheels and the frame at higher yaw angles.

It is possible for most aero wheels, especially discs, to have negative drag at high yaw angles, actually propelling you forward, but it’s slight so the net result is a reduction in total system drag. Track bikes operate in windless velodromes, so their wheels and frames tend to be skinnier airfoils with minimal frontal area.

Wide wheels such as those in this test knowingly give up some speed at 0º in order to gain lots at higher yaw for the simple reason that you very rarely ride in calm conditions.

As well as the superb ‘swooshing’ noise a set of deep-section wheels makes, you’ll also notice how much easier they make maintaining your momentum. When you’re riding on the flat, a quality set of deep-section wheels will make holding a given pace that little bit easier, giving you the option to kick on, or keep something in the tank for the run without compromising bike speed.

AN INSIDE LOOK AT THIS PAST WEEKEND’S RACING
Dischem Ride For Sight

Male Elite 

  1. Reynard Butler
  2. Nolan Hofman
  3. Shameeg Salie

Male U/23

  1. Shameeg Salie
  2. Ryan Harris (TOKEN C50 Wheels)
  3. Flavio Venceslau

Male Junior

  1. Jean-Pierre Lloyd
  2. Jahn de Bruyn
  3. Morne Soule

Male 30-39

  1. Lean janse van Rensburg
  2. Adolph Krige
  3. Gadi Chait

Male 40-49

  1. Jacques Fullard
  2. Erich Meintjes
  3. Mark Spencer

Male 50-59

  1. Frikkie Viljoen
  2. Roland Loewke
  3. Anton Duvenage

Female Elite

  1. Carla Oberholzer (TOKEN T28 Wheels)
  2. Jo van de Winkel
  3. Mandy de Beer

AL

  1. Stefano Madies
  2. Ari Miltiadou
  3. Dewald Malan

BL

  1. Quinton Davies
  2. Lungelo Mlangeni
  3. Maurice Connor

CL

  1. Nick Ferreira
  2. Nunu Trocado
  3. Claudio Trocado

 

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