The geometry changes between DH mode and XC mode correspond to:
Travel and Suspension Rate
In XC mode, the bottom bracket is higher to allow more clearance over roots and rocks. Steeper steering angles mean quicker handling on technical climbs, while a more upright seat position results in better power transfer and more load on the front wheel for improved balance uphill.
With a deeper bottom bracket and flattened seat and steering angles, the rider’s centre of gravity is lowered in DH mode. Load is spread more evenly across the bike for more stability and control at speed and giving a much surer feel when taking on steep descents.
The geometry difference is achieved through combining the action of the Shapeshifter with the corresponding effect on sag due to the change in suspension leverage ratio.
In DH mode, 160 mm of travel and 25-30% sag provide the ideal setup for racing downhill, while 130 mm of travel and around 15% sag in XC mode improve overall efficiency. As a result, the bike sits higher in its travel while climbing and any pedal squat is eliminated. The rear triangle and shock still maintain their sensitivity to provide maximum traction and control uphill.