A:By far the most common are Suspension problems. The extreme cold makes everything brittle, combine that with such excessive abuse and additional gear weight over an extended period and parts begin to fail. Next to that may be good old fashioned running out of fuel. Most riders carry an additional 3 to 6 gallons beyond the OEM fuel load.
Q:How long is the distance between check points?
A:Usually check points are less than 100 miles apart, though the longest is a 120 mile spread.
Q:What services are available at the checkpoints?
A:Fuel. Everything else varies. Some checkpoints have been no more than a tent. Click here to learn more about the checkpoints.
Q:What type of racing fuel is used?
A:Racing fuel is not used. It is automotive fuel that is flown in and air dropped at the several locations. In some remote locations, the fuel sits for months before being used. It can become water contaminated or lose most of its octane. Sometimes it is even ‘summer’ fuel or fuel that was originally formulated for use during the summer and can cause havoc in the winter due to lower vapor points. The fuel is provided to the racers by Iron Dog but at a great expense often times more than $8.00 a gallon.
Q:What are the common mistakes that new racers make?
A:Novice racers most often over pack and under drink. No we are not talking about alcohol. Dehydration is the most common ailment. The body loses a tremendous amount of water when you’re active–no matter the temperature and the Iron Dog racers are more active than you can imagine.
Q:What do racers pack?
A:Racers are required to pack a Tent or a Bivy sack, 5lbs of tools, a First Aid kit, and must also have studded tracks and an extreme cold rated sleeping bag. It has become popular for racers to vacuum package their sleeping bags into bricks to save space. Read the example checklist and current rules for detailed information.
Q:How do racers keep drinking water from freezing?
A:Water is carried on the racers back underneath the insulating layer. Also an electrolyte drink is often used. Besides warding off dehydration the freezing point is slightly below that of water. Some riders have their sleds outfitted with a small water tank that relies on the heat from the sled exhaust to keep it in liquid form.
Q:What is the coldest temperature racers face?
A:Some racers have recorded temps as low as -57 degrees Fahrenheit. Although most racers claim it can get much colder in the river basins and valleys. The wind chill factor at the speeds the racers travel are often in the subzero triple digit range, and often times are quite literally off the charts. Sled seats can even become brittle at these temperatures.
Q:How does a racer dress to prepare against such extreme temperatures?
A:Well, we have to toot our own horn here. A good percentage of racers rely on Klim’s technical riding gear. It is this kind of extreme use that our layering system (base layers, mid layers and Gore-Tex outer layers) was built for. The human body really produces a tremendous amount of heat especially during high activity levels. Iron Dog riders worry about getting to hot as much as getting to cold. Having pit zips and back vents and being able to remove layers make the Klim Layering system superior to any insulated parka and bib. Riders also wear Tec-Vests as well as kidney belts and other protective gear, and as mentioned before some sort of a hydration system. It seems each racer has their own little tweak in the way they layer or prepare that will make the winning difference.
Q:What about gloves?
A:There are as many opinions on the subject of gloves as there are racers. However there are a couple common threads. Seams!! After nearly 2000 miles any misplaced seam will cause blisters. The palms and contact areas should be free of any seams. Water proof gloves are a must. Leave your ‘water resistant’ or DWR gloves at home. Only a durable full membrane liner (GORE-TEX®) will do. Most racers prefer light insulation on the palms and heavy insulation on the back of the hand. The Klim Togwotee fits the bill perfectly.
Q:What are the more challenging parts of the trail?
A:Again this is an area where most people have misconceptions about the trail. Racers will encounter a very diverse geography, wildly varying snow conditions and extreme temperatures. There are large open plains with little or no snow requiring racers to be careful not to overheat the sled and melt the hifax - regardless of the ambient temperature. There is a 5 mile stretch known as the “Tunnel” where the trees are so close that a racer might only be able to see 10 feet ahead at any given time. The trick is to keep both skis on the same side of every tree. It sounds simple enough but countless A-arms have been broken here. Some riders narrow their sleds just to more easily make it through this 5 mile section of the 2,000+ mile course. In other places there are ice slides that must be climbed. Without studs it would be impossible, with studs it is still challenging. There are plenty of places were some good side hilling skills are required. (Try side hilling an ice sheet...it often has to be done.)
Q:What are some of the more unknown facts about the Iron Dog?
A:At night, you cannot get out of your bivy sack to use the restroom. You will risk lowering your core body temperature to a dangerous point. And holding your bladder can actually make you colder. What is the answer? A military invented chemical that converts urine liquid into a gel.
Q:How much of a factor is inclement weather?
A:Huge! Racers have reported that storms hit you like a wall without warning, giving you no chance to find shelter and completely removing any visibility. It has been reported that 8 men have failed to be able to set up one two man tent in such storms, this why bivy sacks are so often used. Sleds can be so packed with snow and ice by strong winds during the night that it will fill every cavity under the hood. When the hood is opened in the morning the snow will have taken on the shape of the underside of the hood. The ice has to be chipped out of the engine compartment to be able to steer or even to get air to the engine. Even after that one racer reported it taking 27 pulls to start a fuel injected Arctic Cat. No disrespect to AC. This is just par for the course under these conditions.