As triathletes we often get a bit baffled by MTB jargon. Here we decode some of the key aspects that will help you have a good race on June 5th
The pressure in your tyres has an enormous effect on your ride. In this area we balance the following two principles
- High pressure reduces rolling resistance
- Low pressure increases traction and cornering
If you’re running standard tyres and inner tubes, having too high a pressure will reduce your ability to corner well, and having too low a pressure will increase your risk of getting a pinch flat, so striking a balance is important. As a general guide, we say nothing under 35psi for this track.
If you’re running tubeless tyres you can reduce your tyre pressure right down, but be warned… too low increases your risk of burping a tyre. If you don’t know what that is, watch this short video.
The author runs 24psi up the front, and 26psi out the back on a set of tubeless tyres.
It’s the Adelaide hills, in June, so it’s probably going to be muddy. A wet lube will attract mud and all the gunk around the track, jamming up your drive train. A dry lube will keep your chain running smooth without it getting clogged. Our tip is to apply dry lube to a clean chain the day before, then let it dry overnight so it’s ready to rock on Sunday.
Speed vs flow
We count 70 corners in a lap of the bike course, and while a fast bike split is generally achieved by going fast, in this instance a fast bike split will be achieved by being able to hold speed through a corner. If you go in too fast, you’ll need to brake and then accelerate to get speed back up, which will have a heavy effect on your second run. If you’re cooked, you’re cooked.
Expressed another way for those that use power meters, if you’re continually having to accelerate up to speed after a corner you’ll have a high variability index for your bike split and your run will not be your best.
Avoid tree roots
Tree roots are like cartoon banana peels when wet. Sometimes they’re unavoidable, so approach them front on. If you hit them from the side you might find yourself sliding…or worse.
In addition to the 70 corners, there is also lots of little climbs. In normal triathlons we have a target pace, heart rate or power and we stick to it. Here, you’ll need to respond to the terrain, which may take you anaerobic. If you’re not including fartlek work in your training, it’s not too late. Make sure your race plan includes these variabilities.
It's not too late to enter. Follow the link to register online.