The mix of wide-spaced, siped tread with toothy buttressed shoulders and a super-sticky, slow damped rubber mix gives outrageously surefooted traction.
It's the ultra controlled compression and ride of the carcass that really stands out though. It's so smooth and compliant over stutter roots or big drops that it made mid-level RockShoxSektor forks on test bikes feel like top-end Pikes in terms of succulent tracking and precision.
The smooth rollover and amount of speed you can carry through sketchy sections offsets their weight and rolling speed in a gravity context too. Just beware of the soap-slippery Roam back tyre.