He is expected to co-ride a Suzuki motocross bike with Penny, a former winner of the Suzuki Six-Hour when it was staged previously in Hawke's Bay.
The big race offers interesting match-ups and, in addition, Clarke has added a new dimension to the race, creating a veterans' (over-50 years) ironman class.
"I thought to myself, if you are aged over 50 and you want to do the race on your own, well why not give them a class?" Clarke explained.
"Track preparation is all but done, with all the bulldozer work completed two weeks ago, so this will give the track time to settle.
"The start for the six-hour will be in a different place from where I usually start events at The Pylons. It will have more room and the first one kilometre of the race course will be very open and flowing. In fact, the whole course will be a bit more open and flowing compared to other events I have held there.
"I have added a couple of 'rest areas', where riders will be able to relax a bit and cruise down a road instead of in the trees the whole way around."