One of you largest investments when considering taking an adventure race is your mountain bike. Typically, the boat for the paddle section will either be provided for you by the race organizers or you will rent it. The gear for the trekking and navigating sections is minimal, and many races do not even include a climbing section anymore, so save the bulk of your budget for your bike.
With that said, you still do not want to break the bank. Here in Colorado it's not unusual to see a car valued in the hundreds of dollars chasing on its roof a bike worth thousands. Sure you can get a mountain bike with full suspension, the absolute lightest components and all the bells and whistles but remember, little Timmy is going to need braces someday.
By the way, unless you are taking on an urban assault, it is pretty much guaranteed that portions of the bike section will be on dirt roads, trails, rocks and other surfaces which will launch a road bike into a formal protest, so let's look at the two types of mountain bikes you will want to consider, hard tails and full suspension bikes.
Hard tail is lingo amongst mountain bikers for a bike which only has shocks on the front forks, so a "hard tail." Generally, a hard tail is both lighter and cheaper than a full suspension mountain bike. The shocks on the front end are designed to absorb some of the impact and bumps on the front tire while allowing for some added comfort and control.
Full or Dual Suspension
Full suspension means a mountain bike which has shocks on both the front forks and on the rear of the bike. Further comfort and control, especially downhill, comes for a higher price and added weight. As this is being written, some full suspension bikes are catching up to hard tails weight wise, but you'll pay a premium to shed the weight looking at over $ 2000.00 at a minimum.
The good news is that most entry level bikes these days come with adequate components and will get you through your training session session and race. If you're a beginner or on a budget, I would recommend going with a hard tail in order to save money, keep the weight of the bike down and ease your maintenance requirements.
When it came time for me to decide on my first bike I bought a 2003 Jamis Durango for $ 350.00. It got me through my first race with flying colors and, with a couple of component upgrades, I still use the bike today, most recently in my first 24 hour mountain bike race.
Source by Taylor Pensoneau