Fair warning, turns out this event is not well suited to TWs. You can definitely do the whole thing on one, but be prepared with an upgraded skid plate, and be prepared to be passed, constantly, within inches of other riders. I was having a blast despite the difficulty, but unfortunately my float decided to stick around 8 miles in after a bumpy hero section, and I decided it'd be best not to risk stranding myself on gnarly trails. Still a worthy cause (riding fee is $100, they don't list it on the site). I'll likely go again next year - but definitely better equipped for the types of trails.