Seeing the Light

01 February 2013

Whether you're dodging impatient cars after a hard day at the coalface, spinning the pedals on a mid-winter training ride, or caning your favourite singletrack... increased visibility and improved safety during nocturnal missions on the treadly is a constant challenge.

With only modest application of brain and wallet though, you can significantly increase your visual presence on the road and reduce your chances of becoming a statistic. NZ law requires your bike to be equipped day or night with a rear reflector that is visible from a distance of 200 metres when a vehicle light shines on it. And at night you must have a white or amber 'steady-Eddie' front light and a steady or flashing red tail light. Both must be visible from at least 200 metres. You can supplement your steady front light with a flashing number. Slightly draconian to us free spirited velo-warriors but a sensible minimum requirement, although it does over simplify the variables.

Twinkle, twinkle

On the reflector front... firstly, bigger is not necessarily better. The smaller the pyramid size in the reflector substrate, the better the reflector. So a little reflector with small reflective pyramids can outperform a big sucker with larger pyramids. Secondly, reflectors and reflective clothing (stripes, etc) only bounce light back in the direction of its source. So in urban areas, where vehicles have their lights dipped, reflectors on the bottom half of your body work better than those on the top. And thirdly, movement catches the eye. Your legs move - hence the reflective logos on each calf on the men's Daddy Long Legs or women's Ladybugs.

Back up

You'll want a grunty LED flashing tail light to reduce the chances of being collected from behind. The light and battery technology leaps forward in giant Neil Armstrong-like steps. High spec models are as bright as car lights. The recognised brands offer plenty of options.

Ground Effect stocks a range of rear and side lights. All are USB rechargeable and last a reasonable time between charges - but the burn time suffers in bright day-flash mode. Battery level indicators help but it's easy to overlook a near-flat battery. The light will change from go to stop with little warning. It's worth having a second light in reserve and/or a routine to charge at the appropriate intervals depending on the length of your commute.

If possible, mount the tail light high on your seat post. Avoid clipping it to your body or backpack. The light is directional so its effectiveness compromised, or at least variable, when you bend forward.

Full moon

For off-road riding more really is better. As with tail lights, the technology gets better, and cheaper, each time you blink. Modern LED's coupled with lightweight lithium ion batteries turn night into day. Even basic models throw out in excess of 1000 lumens. Top spec systems deliver over 3000 lumens. The resultant light is comparable to Sebastian Loeb's Citroen and will suitably stun errant marsupials in your path. Ground Effect stocks the Magicshine 1500 lumen riding light.

... like a dog's bollocks

Back on the tarmac, headlight choice is as much about being seen rather than seeing. A USB rechargeable handlebar light (integrated battery - not separate) with around 100-200 lumens is ample, and reasonably priced. You get around 5 hours burn time and loads of presence amongst the traffic. Ground Effect sells  front and rear commuting combos for around a 100 bucks.

Flash Harry

A bright top or jacket is your first line of defence against distracted drivers when riding during daylight hours. Over and above that, or if you must conform to peer pressure and wear black, a front and rear light with ultra-bright daylight flash mode dramatically increases your daytime presence. Essential modern protection amidst traffic. All our lights feature this mode as an option.

Right height

For travelling in traffic, mount your lights on the handlebars so they're at the height motorists expect to see them. With helmet mounted jobs you may be mistaken for a coal miner rather than a cyclist travelling at speed. And while it's tempting to shine them directly into cars so the driver knows you're there, with a high output light you risk the blindingly obvious consequences.

Off-road, helmet mounted lights let you shine them in the direction you're looking, rather than where the bike is pointing. Great for twisty singletrack. However they produce less shadowing than the handle bar versions so it can be more difficult to spot terrain changes and obstacles. If you're limited to a single light then go for the helmet mount. A combination of both is a fabulous money-no-object solution. And will save your bacon if you suffer an electrical melt-down - letting you limp home on one light.

May the force be with you.